Great mouse, horrible battery life
596429
Poor battery life.  Even on power saver the batteries only last a few hours of use, which means they only last a few days when I include overnights and other times I'm not using the mouse.  I don't understand why it drains batteries so fast when the M705 Marathon mouse lasts years on a single pair of AA batteries.  Maybe logitech should have allowed 2 AAs in the g700s?  But if you leave the mouse plugged in it's great, however I feel like I could have saved money by buying a cheaper wired mouse if I have to leave the g700s plugged in all the time.
598514
I like to use a wireless mouse with this, but I can not seem to stay away from the touchpad. No problem, I thought, but it will not disable! Tried Fn-F9, no good.  Then I disabled it from the taskbar menu, but it still will not stop.

Battery life is not nearly as advertised.

For $860 I expected way more for my money.
4223597
The Good...
I really hate not giving this thing 5 stars. The fit and weight are comfortable for me - I have a medium sized hand. The left and right buttons are practically silent and the mouse wheel is extremely quiet. The programmable thumb buttons make noise, but are still quieter than most of the mice I've used. The one I used at work is runs 50 to 60 hours a week and the batteries lasted almost 8 months, I just replaced them yesterday. I play an online game and I like setting the DPI to the low setting for that.

The Not so Good...
Unfortunately, the left button on the second one started to fail after about 4 months. I just tried the return option and it defaulted to a refund. If I get a refund, I'll try buying another one. Hopefully the odds will be in my favor.
2580620
This mouse is awesome.  You can get it to fit your hand perfectly.  Build quality is stellar!  The styling is awesome too... most people think it's some kind of Transformer on my desk just because it looks like it could turn into something else.

My only complaint is that the receiver/transmitter for it is part of the charging dock.  I wish that it had a smaller dongle that could be used for the computer to make it nicer to take a long with your laptop.  As it is right now, it really only makes sense to use this with a desktop.

The battery life is kind of a bummer as well.  The battery only lasts about 6-8 hours of moderate to heavy use.  I use it at work and have to swap the battery every day.  This isn't the worst thing in the world since it comes with two batteries, but it does get a little annoying.

The sensitivity and built in programming functions are very nice, and seem to work quite well.  The eye on the mouse seems to freak out every once in a while which is why I took a star off of the rating.  Also, every few weeks I have to unplug the docking unit and plug it back in again because it seems to lose signal to the mouse or shuts down.  So that's the only way you can really "reboot it" as turning the mouse on and off doesn't solve the problem.

Other than those minor annoyances, which can easily be overlooked, this is a great mouse and I'd recommend it.  It looks awesome too!
1084030
The good:
The mouse itself is excellent. Feels comfortable in your hand and tracking performance is spot on.

The bad:
The battery that comes with the mouse only lasts about 4-5 days before needing a charge. The specs say it should last 30 so I contacted Logitech support. It took them 4 weeks for them to tell me that the mouse will not be covered because Amazon isn't an authorized retailer.

The bottomline:
I will never purchase another Logitech product.
387433
The mouse would be awesome except for when I don't use it for a little bit it goes into sleep mode and it take for me to either bang it or wait at least 3-5 minutes for it to work again.
1998342
Great mouse with a good feel and smooth scrolling.  The three year battery life is a great feature.  We noted that the two AA batteries both get inserted in the same direction.  So in a pinch you could run this with only one replacement battery.  I'm guessing the battery life would only be 1.5 years in that case :)
661144
I love this mouse. My battery life is about three months. I like the size and feel. The transceiver is small so it doesn't get in the way on a laptop.

The only problem is the issue with the nano transceivers as descibed in other reviews here and elsewhere. They get hot and burn out. Then your computer won't recognize the mouse. Also your computer will freeze up completely. Microsoft fixed this problem a year ago and redesigned the unit (supposedly), but there are still old versions out there on the shelves. I just bought one a few weeks ago and it died today. It must be the old type.

Just call Microsoft at 800-360-7561. There is a three year warranty and they will ship you a new one immediately. It used to be they would only replace it only with a black one, but now they will replace it with your original color. Be sure and specify what color you want or it will be black. You don't even have to send the old one back. Great customer service. But a bit of a nuisance to have to deal with. I keep a spare one around now.

UPDATE: After my most recent one died two days ago (see above) I called Microsoft for a replacement, which is backordered for several weeks. Today my spare one died in the same way as the others. It was a replacement unit for a previous one that had failed. This makes about 7 replacements for me in the last year. It is getting tiresome, but Microsoft cheerfully replaces them. They must be losing a lot of money on this mouse.
4112568
This mouse works great on my Mac.  I don't know why the description says poor mac support, it's ridiculous.  I haven't charged this mouse in over a week and it still has 2/3 bars and I use this mouse A LOT (80+ hours a week).  Maybe ~240 hour life span would be considered low for some mice that require you to replace their AA batteries, but the MX Revolution has an internal battery and a charger stand.  Place the mouse on the stand when you get up to have lunch, when you get back it's fully charged.  As far as I can tell the mouse also turns itself off when not being used.  I'm not sure what the power button is even for since I haven't used it at all.

The only issue I've had was when I first got the mouse I had to charge it to 100% before I could use it.  This only took 30 - 45 minutes but in that time I called logitech support wondering what was wrong and they had no idea.  This seems like a pretty basic problem for them to be stumped on so I won't trust them much in the future.

The last thing I'll say about this mouse: The scroll wheel is incredible.
4438131
Awesome mouse! Better than some of the wired gaming mice I've used. In the 6 months I've had it, I've only replaced the batteries once, about three weeks ago. Great response time and no perceptible lag (to me.) If you're looking for a wireless mouse with a few extra buttons and great battery life stop searching and get this.
4451374
Constantly, constantly runs out of batteries - a great mouse otherwise, and a pleasure to look at.
2888829
Great mouse.  I'd been using Microsoft Ergonomic Mouse for many years, but they kept going bad after a year or two.  And they weren't very accurate.  It was very hard to get the pointer exactly where it needed to go.

But this Logitech is just about perfect.  Great hand position, very accurate, and simple to use with many features built in.  The only reason for four stars rather than 5 is the rechargeable battery has a very short life span between charges.  If it does go dead it can be recharged while it's being used, but that makes it a wired mouse and kind of defeats the purpose of buying a cordless mouse.
3145033
This sucks specially mouse, do not buy the mouse unless you need it for decorating your desk like me because is too heavy and incontrolable. Life battery sucks! less than a month using every day. Be carefully because it doen't come with bluetooth usb receiver and not all receiver support it. Actually, Im only using the keyboard with rechargable batteries.
3893677
Battery life for this mouse is inexcusably poor. I turn the mouse off when I am not using it, and the battery still only lasts a few days to a week. That is ridiculous. The last wireless mouse I had (Microsoft brand), the battery lasted months and months. I have had this mouse for less than a month and have already put 4 batteries into it. This one will be going into the trash and I will be buying a different one.
3305016
This mouse has three issues I will get to in a moment. First the good things...

This mouse is fast, resoonsive, great for coding, or where you must scroll thousands of lines of text. The smooth scroll prevents undue eye strain.

On the flipside I have three reasons to throw this out in favor of someting else.
The app switching button is too sensitive. I find myself writing code and then suddenly working on a document I didn't want to edit.
The battery life is too short. The predecesor had a battery that lasted a full week of 8+ hour per day use. With this mouse I am lucky to get three days.
Finally, and the one that makes me angry, it will sometimes think that I right clicked when I am left clicking. It holds the oddity for about a minute and then returns to normal.

It's not a bad mouse, and I may have just received a bad apple. Even in that case this is not the quality I have come to expect and trust that I will find from Logitech.
1991397
I own a lot of gaming mice from this to the rat9.  This is by far my favorite mouse for work and gaming.  Only thing bad is that it's a battery hog.  I have to swap batteries every day (1 eneloop AA)  for 12-14hrs of use.
244271
The mouse feel and setup was excellent.  The price was excellent.  I use this mouse with my Windows 10 Pro laptop.  This mouse goes to sleep when I leave my laptop ON and come back in 15 minutes or goes to sleep when I am typing and using the keyboard.  My laptop is setup to NEVER sleep, it always stays ON.  I have to click the RIGHT click on the mouse several times to get it active, but it opens several windows on my laptop.  If I need the mouse to come back on quicker I have to remove the battery and put it back in, which requires me to open the battery case remove battery and place it back in.  I wish it had a ON/OFF button instead so I could turn it off and back on to activate it.  Not a recommended blue tooth mouse.  I am looking at buying another.