It's very comfortable, very accurate, very smooth. It's simple, but has all the basic buttons you need and none of the extra chaff. It has an awesome blue light, but you can disable this if you want. It's also easy to clean, and looks great! :)

There's also a button on the bottom, you can program this, but it is in a rather awkward place. My only complaint.

Newer models come with a braided cable which is very sturdy.