Best gaming mouse there is
589046
Best gaming mouse there is. The buttons on the side are very useful in gaming and in normal use. But I had terrible experience in getting the product. It came after 2-3 weeks and the estimated time of delivery was 2 months after I placed my order. The customer service sucks.
3148768
I am a big gamer, whether it be console gaming or computer gaming.  When I got my new laptop, I knew I had to get a great gaming mouse to go with it.  After some research this mouse kept appearing, so I thought that I'd give it a try.  AMAZING!  This is everything you need it to be and more!  The amount of customization is astonishing in how you want it to work.  Whether is be controlling the button macros, mouse drag or mouse speed, or other options I didn't even knew a mouse could have!  This is perfect for any gamer (FPS-MMO) and anywhere in-between.  The mouse is large enough and feels perfect in you hand, and seems designed to rest your hand comfortably on.  The buttons on the side do take a little getting used to, but after some playing they become second nature.  It even comes with a kit to help learn the buttons, with these rubber stickers you put on the buttons to help you learn your way around.  It also comes with a nylon cord, which is really heavy duty and will not break unless on purpose and a gold plated USB connecter, which I don't see what the big deal is but it is still pretty cool.  Oh, and did I mention that the mouse lights are amazing?!  It is nice and bright (you can turn them off if you want to) and if this isn't a gaming function then I don't know what is.  I have used other gaming mice before (such as the Logitech and Madcatz) and I have to say this is by far the best one out there.  This is everything you want and more in a gaming mouse.  Completely worth it.  =)
2139632
This mouse is one of my favorite mice that I have ever owned. It fits my hand perfectly, is just the right weight, has a great braided chord and looks really cool with the lighting.  The software works great and has a ton of customization available.  All the button clicks are perfectly adjusted.  You don't feel like you have to smash on any of them including the middle mouse button which I often find annoying on other mice. I own 2 of these mice, one for work and one at home for my gaming. This mouse is well wroth the price.
4016464
I love this mouse! First of all if you are not sure if a gaming mouse is what you need to improve your game then I tell you, go for it, specially this mouse. This is my first gaming mouse and I've been using for most of my life normal mice you would buy anywhere...but just recently I decided to try a gaming mouse for real this time. After some research in the internet I found out about this mouse being as one of the best gaming mice and best of all it wasn't astronomically expensive. When I got if, I tried it playing a FPS as I was really in need of a more comfortable and precise mouse, and whoa, it indeed improved my gaming a lot. I mean, obviously you have to be in a way good in the game you play but if you need a boost in skill and precision, this mouse is just perfect. You can almost literally feel and see the difference; with more headshots.
If you are like me not sure if a gaming mouse will improve your gaming and skill, I say, got for it. It does help a ton and improve your skills, this is the mouse I was looking for and probably will be what you need too.
3912763
This is the third Logitech mouse I have owned and they have all operated perfectly for years. The only reason I got this one was because of the new and improved technology and lighting effects. It is also a bit smaller than the other curved gaming mouse of theirs and I like the ambidextrous feel better. I have had this about a year now and it is by far the best mouse I have ever owned. Cool lighting effects, lots of customization and I have not experienced any issues in the last year. No noticeable delay with use and works great for gaming. Highly recommended.
2254017
This is definitely the best mouse I have ever owned. The mouse just looks so cool, but it fits in my hand perfectly after some adjusting. I do a lot of gaming, and the different programmable profiles really helps me quickly switch between different games. The precision aim is pretty cool, but I use it as another button mostly. One thing I would recommend before buying is not getting a soft pad. I bought the SteelSeries Qck Gaming Mouse Pad, but it was too soft and the mouse sunk into it. I would recommend a thing pad or a hard one. I use an old playing card mat and it works great.
1440494
This is a super nice mouse for gaming of any type, even non-MMOs. The amount of customization in the buttons, color wheels, and even macros is awesome. It makes your life a hell of a lot easier if you're playing ability-based MMOs like WoW and FF14, where your hotbar may resemble a piano due to the number of abilities and in-game macros you have set up. If you play MMOs of any kind, or even just online gaming in general, this mouse is actually a very solid upgrade over a normal mouse.
1323914
Amazing mouse. Good design and great for gaming. I've been using this for close to a year now and have yet to discover a single downside.
2839120
This is definitely a great mouse for gaming or just general use.  My previous mouse was a Logitech MX-700, which used two NiMH batteries and a charging cradle, so I'm comparing the G7 to that.

The G7 is noticeably lighter than the MX-700, but the shape is pretty much identical.  The sides are a darker green color (Amazon seems to have the wrong photo as of April 8th, 2006) and they feel like solid, smoother plastic.  The MX-700 had semi-rubbery grips on the side.  The mouse feet are also very smooth and wide.  It works really well on my 6-7 year old Ratpad.

The obvious change is that it has less buttons: no forward button on the left side, and it's missing those little buttons above and below the sccroll wheel.  Instead, it has two buttons below the scroll wheel for adjusting the DPI.  A small LED indicator shows you which DPI setting you've chosen.  When the mouse goes idle, the DPI indicator turns into a battery indictor and then eventually turns off.

The DPI buttons are GREAT for gaming, especially first person shooters.  You can quickly lower the DPI when you're sniping or when you require more accurate aiming.

I haven't tested the exact battery life, but it seems to last about a day before I have to swap batteries.  The swap is painless and I can even do it in the middle of a game.  I haven't had any problems with the mouse/receiver dropping the connection while I do the swap.

The small USB adapter can plug straight into your USB port or into the battery charger.  This lets you take just the adapter and the mouse on the go, but the battery probably wouldn't last you very long, so you'll need the charging cradle anyways.

Pros:

- DPI buttons on the mouse are GREAT for video games.  You can change the DPI on the fly.

- Extremely accurate with no connectively problems.

- Swapping batteries doesn't cause dropped connections.  I can even do it in the middle of a game, and everything still works perfectly.

- Light weight and smooth gliding.  It's probably about as heavy as a regular corded 5+ button mouse like the MX510.

Cons:

- Battery life is pretty short.  I swap batteries once a day if I do several hours of gaming per day.  This seems to defeat the purpose of the detachable adapter.
1746702
This mouse has been great for gaming. It's very responsive, feels great, and I like the color changing capabilities. This is my second DeathAdder mouse, and I will always be loyal to the brand. High quality, well worth the price.
1475734
The best gaming mouse for StarCraft II.  I use it with a Nostromo side by side, it allows me to sit my fat butt in my recliner with the laptop on my lap and nostromo left hand and this Naga Epic in my right.  I love it!  Quality is durable, solid, and the lights trick it out nicely.  I like this better than the higher price mouses as this one just works and does everything I need, and its wireless.
4189537
When it comes to gaming mice, there are two priorities for me; comfort and customizability. The mouse can be adjusted to fit my hand and grip. Synapse 2.0 allows the many buttons on the mouse to be customized and mapped exactly how I want for any task I want to use it for. I've used the Logitech MX Revolution and G700 in the past and those set the bar for what I like. This mouse is easily the best I have ever used. The look, feel, and build quality are all exceptional. It is responsive and reliable for everything I use it for. The Razer Ouroboros earns my highest recommendation.
3296070
Easily the best mouse I've ever owned. I have been trying to find the perfect mouse for a while now, going through the FK series, EC series, Razer deathadder and this mouse demolishes them all. I was a little skeptical about the Logitech driver at first since I was coming from mice where drivers weren't needed and razor synapse was an awful experience, but the Logitech driver was completely flawless and very user friendly. For people who use claw grip this is easily the best mouse out there.
2161410
Having had this for a couple of years (3 years) now, you can't really go wrong with this mouse. The functionality, durability, and customization are unmatched. No offense to the other fanboys lol along with the other products reviewed before
1021058
this is by far the beat mouse i have ever used for gaming. i bought it 2004 and im still using it in 2012 that's like 8 years so far lol!
3274472
Really nice mouse. Good button layout and tactile responsiveness, heavy enough for gaming, can adjust the sensitivity on the fly using the buttons on top below the scroll wheel. Software to control it is easy to understand and installs simply. Recommended for any gaming application.
3009195
This mouse is incredible. It's honestly one of the best gaming mouses I have ever owned. The adjustable speeds of the mouse are beyond useful for games that you have to use the mouse to look around (Five Nights at Freddy's, Minecraft, Vanish, etc.) and the way it changes color is really soothing when playing horror games. Not to mention the fact that the design is pretty cool. I just really love this mouse.