I have been using this for about a month. Ergonomics is ok but not that great. Unless your hands are very big, you will find it a bit difficult to get to the no. 9 button on left side of the mouse.

Let me start by saying this is my first "gaming" mouse. I've always used stock mice that came with my computers until I finally decided to buy this mouse from Razer. The first thing I noticed was the comfort. Using it for a long period of time didn't leave my hand feeling tired like some other mice.

Razer are one of those big companies that have been in the gaming peripheral market for quite a long stretch, so it's always with some excitement that we crack open a box of one of their latest products.

Looks great; Very comfortable; Incredibly sensitive DPI; Very accurate; Excellent software

Bit expensive for some; Macros are limited to certain number of keys

Looks and feels great, works well, while it lasts. 2 stars because it broke down after less than 2 years of use. Just came out of warranty, too. Not recommended at all, at this price.

Coming off a standard optical mouse, this issue is super. I can't think how precise the tracking is. The mouse arrow no longer jitters when moving slowly. The feel is superb, the wheel feels solid. If anything, the application does have a small finding out curve.

It's really comfortable, I don't actually like the ajustable side buttons but apart from that its great

One of my best buys yet

I wanted a decent gaming mouse, but was not willing to take a chance on a cordless one. After a few hours of research and reading reviews I decided to buy the Razer Imperator. I must say this is the first gaming mouse I have bought, but I couldn't be happier with my purchase.

Ever since the first appearance of gaming mice, Razer has without a doubt been one of the largest names. Ever since their first models they've been pumping out successful models one after another, and this time their newcomer - the Imperator - came to our tests.

Adjustable thumb buttons; Smooth wheel

Shiny plastic sides

It is very intriguing to note that instead of releasing totally new products, gaming peripherals manufacturer Razer has implemented their new 4G dual sensor technology on its gaming mice and rebranded the famous Imperator and Mamba as Imperator 4G 2012 and Mamba 4G 2012.