price, design, durability

usability, reliability

50% of the reviews on Amazon.com give this product a positive rating.

2,400 DPI! Very responsive and accurate. Different colored interchangable palm (faceplates?). Nice lighting effects. Good positioning of buttons. Switch toggle for changing DPI 400,600, 1600, 2400 on the fly with indicator. Very handy for snipers and...

Can't turn the lighting effects off. Pretty bright at night if you leave pc on when you go to bed. Very minor con so I still give 5 stars

The laser on this mouse is very accurate. When you lift the mouse off of the mousepad, it disables itself so that the mouse cursor won't move. Switching DPI on they fly is nice and it has an indicator to show you which setting you're at. I also have...

The page forward/back buttons are kind of stiff although it really isn't a con, it's better to have it stiff so that you won't accidentally click on page back when you're doing something important

Good placement of DPI switch. Good spacing of default dpi settings. Tracks well

For right-handed people. Scroll wheels jams

A very good product! I am able to work much faster with the speed and precision this mouse delivers! It stops exactly when I stop, It moves very quick and reduces moving speed, and it looks stylish

The only downfall of this product is when I am watching videos on Windows Media Player, It seems to send signals to the computer at times that dont really happen, like the curser moves a *VERY* slight amount, yet WMA pulls up the Player bar at the...

For starters this mouse looks pretty cool. It is very easy to change the sensitivity on the fly. It's highly accurate and it feels like a solid mouse

Well my hands are pretty large. My old g5 fit me perfectly and although this mouse is around the same size it feels much smaller than it actually is. It's the design. It becomes very narrow toward the back. Not to mention this thing is very light

The DPI switch is a nice feature for switching in between sensitivities. I have yet to test the mouse, gaming wise, but I can already see how that can be an advantage

The form - It's shape is designed for three finger use, meaning that that it holds best with the index finger on the left button, middle on the scroll wheel, and ring on the right. If you keep the middle finger on the right button, your ring finger and...

Although it's not listed as supporting it, this mouse and its software works flawlessly on a Vista X64 system. The scroll wheel is translucent and glows blue. You can't beat on the fly DPI switching

Contrary to the listing here, this mouse has only 5 functional buttons, one of which doubles as the scroll wheel. The other button is used ONLY for on-the-fly DPI switching. Not of the same build quality as a Razer, and thus not worth the current price...

Lights up, Smooth mouse wheel, fast as lightning at 2400 DPI

If you have a fancy mouse pad with designs on it it tends to be a bit jumpy at 2400 dpi. Had to switch out my mouse pad because of it, but nothing big really, and i cant seem to get the scroll down to do only 3 lines instead of a full page at a time

The mouse looks really cool, I like the lights all over the place. Its comfortable to hold in my hand. The changable resolution is really nice when I'm touching up a photo or playing a game

It feels kind of light, it would be nice if it was heavier or to have changable weights. The DPI switch is kinda awkard, it just sticks out there and sometimes gets away when using the scroll wheel

Switchable DPI on the fly make it great for switching between office/multimedia/gaming use ; 2400 DPI is ultra fast ; movement is very smooth and accurate and wheel is smooth ; grooves that rest your thumb and pinky ; excellent for gaming. No lag

Payed too much for 1ogitech before I found this one