I have owned this mouse for about three months now and I can tell you I love it. I have had zero problems, and hope to never have any. The customizable weight system is just a gimmick to me, I don't really notice any difference between most combination's.

2000dpi is more than enough for fast paced FPS game play, I would without a doubt recommend this mouse to anyone in the market for a gaming mouse, it is fairly expensive, but when it was available for $62 I bought it instantly. :D Great Buy.

This mouse is absolutely fantastic. The customisable weight and smooth, comfortable design make it the perfect tool for countless headshots with an AK. combine this with any steelpad pad and you've got yourself the perfect setup.

I Use this mouse for World of Warcraft which is Ideal, It has a lot of buttons that are easy to reach, push and control.

2000Dpi is more than enough to offer great response times and control in MMORPG, Some would say its enough for FPS games, but if your really serious you may want something a little higher.

Logitech's SetPoint software offers an enormous amount of control over the mouse. This is another critical feature as you will save time and free up fingers on your keyboard while offering a larger opportunity to keybind everything.

You can, for example, tell the SetPoint software to recognise the game you're playing, set the mouse buttons to equal keystrokes only within that game, and change the dpi selector on your programmed settings just for that game. (Taking the term “Get you game face on” to the next level)

Its hard to say if the lifespan is a pro/con, it works well for longer than most but like all things, it eventually fails, you will notice buttons stop being as responsive. The bright side – Logitech has a great warrenty and for the price it still is great quality.

The cons:

• Right hand only (I think the G3 does a lefty but doesnt have the weight option)
• Hard to master the center/scroll buttons without actually scrolling the wheel
• If your a FPS animal it may not have enough tracking resolution.

Lastly Combine this with the Steelseries 7G Keyboard (Which I hope MightyApe starts to stock) AND you my friend will have yourself a top of the line World of Warcraft setup that will make your friends jealous and you smile every killing blow you make.