Heres one of my guilty pleasures. The pleasure of being able to spend nearly stupid amount of money on a mouse. The Microsoft Habu supposedly combines the durability and comfort of the microsoft mice with the speed and precision of the Razer mice.
To be honest, this is exactly what it does, having previously owned and/or used numerous mice in microsofts MX series and Razers Diamondback mouse.
The Habu sports a very cool glowing blue light that can be seen through the mousewheel and all around the mouse itself. This alone to any of you who may have a weakness to this sort of thing is a must have, and a staple of all razer mice so far it seems. The Habu has 2 interchangeable side button interfaces. They both have different button sizes, which is nice for those who have a preference for that kind of thing. There are small teflon pads on the bottom of the mouse that make it really smooth to move around.
There are buttons right behind the mousewheel that adjust the DPI (mousespeed) right on the fly, which is a great addition for gamers, who tend to like having different settings depending on situations. the location of these buttons is also such that its hard to hit them by accident, also a nice touch.
The Habu is very comfortable. I have a bad habit of spending 1-unlimited too many hours on the computer, and i never find that my hand gets uncomfortable using it. Its a very ergonomic design, although I cannot speak for the lefties out there.
Overall the price is a bit steep for a mouse, and after a lot of constant use, mine is starting to slowly bug out here and there, but to me this seems to be the issue with any mouse. The quality is great, and you find the best of both worlds with the sleek style of razer, along with its speed against the comfort and ergonomically friendly design of the microsoft mice.
As a note, you can usually pick up a Habu for about 70$ these days. Look out for deals! I managed to get mine for 20$ off the original price, (109.99!). Sometimes its certain worth waiting a bit.