The ONLY mouse I'll use
591932
I've purchased new computers, new towers (that came with a keyboard and mouse), new keyboards (that came with a mouse), and laptops.  Every single one of them has a Trackman/Trackball connected to it.  I've had issues with Carpal Tunnel and D'Quervain's Syndrome, and the Trackman is the only mouse that doesn't aggravate it because I don't have to pick it up -- I just roll the ball. If you live in a dry, dusty area, you will have to remove the ball and clean off the four points (like looking at a compass -- N, E, S, W) and get the dust collections off every couple months.  I have yet to wear one out, and I've been using computers extensively for 22 years!  I may not wear them out, but I have a dog who likes to jump up and play with the ball, so I've had to replace one for a missing ball.
4667131
I have laptops (Macbook Pro) and iPads w/ keyboards. I require a reliable, effective, inexpensive mouse. I don't want a mouse that controls Star Wars 9 on the Xbox. I need a simple mouse that does it job. I'm an old man. This is perfect. I order so many because I lose them. As I said, I'm an old man.
4958479
Best mouse out there, bar none.  I am yet to see anything that can compare.
273030
This is my third one over the span of 3 or 4 years and I still love the feel of the mouse in my hand, I will not have any other.  Goes through batteries pretty fast so I got a battery charger and lith battieries but I use it about 10 to 15 hours a day every day.  No other complaint, this is a GREAT MOUSE.  Works an most any surface, wood desk, arm of my recliner chair.
1265539
I bought this mouse while it was on sale here on Amazon. It has since then become my main mouse and I am loving it! The mouse wheel works wondrously and it even has side-scrolling capabilities.

The need for only one battery is fantastic. The mouse also feels great in my hand and is a pleasure to use for long periods of time.

The only downside is lack of extra buttons. Other Logitech mouses have back/forward buttons--this does not. If you need those, this does not have them.
658859
This is why I buy and recommend Logitech: my first one lasted 8 years with hours of use every day. (The right mouse button eventually started to become unreliable.) I couldn't find a reasonable-priced alternative, so I'm happy to buy this again. I particularly value being able to crank up the pointer speed, since I use two monitors.
3311966
This is probably the fifth or sixth M325 I have bought, not because they break down, but because I buy them for friends and for additional equipment (tablets/notebooks/home video security system/etc.)  Long ago, I started out my computer use with a trackball because back then the mice were wired and didn't respond to movement all that reliably (and I absolutely hate moving a mouse with no corresponding cursor movement).  The resolution required one to pick up the mouse and drag it some more on a crowded desk or mouse pad to get the cursor across the screen.  Very inconvenient and a trackball worked much better.  For the longest time I was very much "anti-mouse."  ...Until my girlfriend needed help with her computer and I used her mouse.  It was a lower end model (M-317), but I was immediately surprised at how well it worked.  It was wireless, sensitive to movement, and had enough resolution to make picking up the mouse unnecessary.  That afternoon we went out and got a couple of the M-325s because they have the tilt wheel (very handy for surfing the Internet) and a longer battery life.  I have been using mine ever since then, to the point that I've worn the little slider pads off the underside, but it still works very well, and with approximately 18 months on a single AA battery I very rarely turn the mouse off (it has an auto sleep mode after a period of no movement).  Over the years I've used other brands of wireless mice while helping friends with their computer woes, but I keep buying the Logitech brand because I have been spoiled.  They are a superior product in my experience.
2400545
Honestly, this is the only mouse I've felt fully comfortable using for years. It's comfortable and durable.
2902350
I'm a long time (since these were originally introduced in the 1990s) user of the Marble Mouse and hands-down, it beats any mouse or trackball I've ever used.

The fingertip control means no need to move the mouse or your wrist, cutting down on the risk of repetitive motion injuries and saving desktop space (important if you use a desk like mine that has next to no space for a mouse).  Action is smooth and the buttons hold up for years--I replace mine on average of around 5 years or so (this will be my 3rd).  Cleaning out the socket is easier than a standard mouse as you have full access to all the hardpoints and electronic eye inside, ensuring you get every bit of dirt out when it comes time to clean it.

While I'm not a heavy-duty gamer, I have used this a lot with a wide variety of games and in fact find it wholly invaluable for 1st-person shooters (currently playing Fable: TLC and the smooth movement and lack of need to pick it up and move it back makes fight sequences much smoother).  If there's one complaint it's that there is no mousewheel function (which some games make use of) nor any 3rd mouse button; but these are relatively minor complaints for all it's good points.

The two added navigation buttons, to be honest, I almost never use so I can't comment on them.  I typically use this without the installed Logitech software; I did at one point but the added features did little for me, so I mostly use it as a standard PS/2 mouse.

All in all, you can't go wrong with this one, and I highly recommend it for casual, business and gamer uses alike.
1143859
Ihave been using this mouse for years. Iwas disappointed when i went shopping for a new one to find that any store i went to don't carry them. I am so thankful to have found it on here. IT is my very favorite. so easy and comfortable to use.
4513545
My personal favorite is a thumb mouse. After using a corded on for over ten years, I tried wireless. It works great! A few to many buttons that can be pushed by accident. I'm just careful and it is fine. I suppose some "gamer" had to have all those buttons that cannot be disabled. Hello. Logitech? How about making software to disable the unused buttons?
Will buy again, regardless. Battery has lasted and lasted.
160491
I bought a Logitech V450 Mouse just to days ago, and it's perfect. I hooked it up to my MacBook, downloaded some cool software to customize it, and it works like a charm. The buttons feel great, even after extended use. The click wheel works perfectly, and the whole mouse is just the right size. I haven't had any problems with connectivity; the little wireless dongle works great and the mouse is always accurate.

The software lets you choose which buttons do what, and I made the "Click scroll wheel" command Quick-Look a document. So handy.

The laser tracking works really well, even on my uneven wood desk. The mouse doesn't jump or skip.

I recommend this mouse to anyone looking for a high-quality notebook mouse without the high price tag. It works on Windows and Mac, another plus.

Great mouse, and affordable too. Get one.
2509162
I love this mouse. I have been using it for the past 2 years and I cant use anything else. I think it one of the best mice out there
51464
I've had this mouse for about 3 years now, and I have to say that it has served me well. I don't do much gaming but I do use the mouse to work in Photoshop, which requires some level of precision.

Pros: Speedy response time, optical reliability, forward and back
  buttons, useful scroll wheel, looks cool with my black case.

Cons: Doesn't work at all on a glass desktop, 'alt-tab' button doesn't
  work in Vista, finger prints show up on glossy surface really
  easily.

Overall: I love this mouse! It replaced my stock mouse on my last
  computer and has stayed with me for this last system build.
  I'd buy it again in a heartbeat!
511873
I have three of these USB Microsoft Mice, had these for over 10 years, recently bought a new one because I spilled beer on my old one.  This is probably the best mouse with super-accurate clicks and scrolling.  I really like how the scroll button you can feel scroll instead of other new mouse on the market that feel "too soft".

I don't like Microsoft at all times for their operating system but this mouse I cannot live without.

Simply more accurate for clicking and scrolling than any other mouse I've tried, and believe me I've tried many expensive mouse but keep coming back to this one year after year.

Also very durable and lasts long, my other one I spilled beer was around 10 years old.
1220312
Initially I balked at the thought of paying more than $15 for a mouse (this was back when you would have to pay $50 for this model.) and considered it for a long time. My biggest thing is that it has to be able to multitask and whether I'm in a video game or surfing the web, ALL buttons must function. Period. Having decided to upgrade to "gamer" equipment, that too caught my eye.

Upon arrival I thought that perhaps the shape might pose a problem, as I was used to the rounded-dome mice. It fit comfortably and snuggly in to my hands and all buttons were within easy reach. I have never had an issue with it being unresponsive or jumping around that wasn't solved by removing a stray cathair from underneath the optical sensor. It has gone strong through 3 moves and 2 years worth of gaming and the only thing that bugged me was the pads on the bottom wearing down and wearing off.

I adore this thing. It has become virtually indispensible when I am online with MMORPGs, allowing me to save moving my hands to different parts of the keyboard to strike hotkeys that were taken over by buttons on the mouse (and I didn't have to program them, to boot, it naturally picked up some of the more useful commands!)

I like this thing so much that when my last one met with an unfortunate orange-juice incident that warped the left click and stuck the back and forward buttons above the thumb, I immediately went out and tried to find another one. I'm glad I did, as I find this to be an incredibly reliable and useful mouse, and I have not once regretted the money I spent on it.
4298901
This is the only mouse I've ever used. I bought it back in 2004 and I'm still using it today. I can tell its beginning to fail, its sitting looser in the USB port and it occasionally loses its connection, but I hope to get another few months out of it.
This thing has taken hundreds of drops without missing a beat. It still functions perfectly aside from the occasional disconnect.
Its sensitivity is just spot on; I get very frustrated using other mouses, because they are overly sensitive, even after going into the control panel.
I only realized today that this thing came with a textured grip, but constant use for almost a decade had eroded it to a smooth finish and the logitech logo is no longer visible.
This is a no nonsense nothing fancy beast of a mouse that will likely outlive any computer you plug it into.