Likes
- Virtually the entire surface is your playground (for scrolling, swiping, etc)
- iPhone-like flick scrolling
- simple, solid design
- stable and smooth bluetooth connection
- no moving parts for the scrollwheel or multiple buttons
- looks great on my desk :-)

Dislikes
- pretty low profile design, so I'm not used to that yet

I haven't been able to spend a lot of time on it yet, so maybe I will put up another review in a week or so.