Pros: Gets the cord off the table. (You don't know what you are missing until you get the cord off the table from dragging around.)
USB hub.
Nice Blue Glow

Cons: Really not needed.

Other Thoughts: Got one of these due to a price drop, and thought, "Why not?" I'm glad I did buy it and it works great. It really helps smooth out mouse movement like a wireless mouse with no lag or worry of changing the batteries. However, if it was a bit more I wouldn't recommend it. It's very nice to have, but not a must have. If you have the extra cash you won't miss, then I say but it. If you won't be able to pay the bills if you bought one, you aren't missing much of anything.

Pros: Stiff
Smooth with grip
Looks nice
Great for high DPI/CPI mice with heavy weight
Not exaclty expensive for what you get

Cons: Not recommended for lighter weight, lower DPI/CPI mice (not my bag anyway)

Other Thoughts: Very very nice. Highly recommended for what it is. I have one for my tower and one for my notebook.