
Cheap, reliable, responsive, soft clicker, good looking, optical, and wired. Wired is the new wireless, sometimes. You don't have the need to carry a spare battery everywhere you go just in case your wireless connection dies.
This mouse is easy to use with both hands without you having to configure anything. The click-on space is roomy and symmetrical enough to allow any hand, right or left, to use it comfortably. I alternate hands when my dominating hand gets stiff after a long day of mechanical clicking, and this is the mouse that allows me switching hands most comfortably. The opticality is great and I use it a white paper sheet as a mat, and runs wonderfully.
I love the looks of this 'cutie' because of its curvaceous shape, its minimalist design in white with tiny bright mini-splashes of colour in the scrolling wheel, cable and logo. It reminds me of some of the Apple mice, but way cooler. Like for people with a personality :O :D. This being the case, this mouse is great to customise any work station. The sophistication of the minimal.
Another Microsoft mice that is my hall of fame.