Summary: Save your money and get a Boxee. It's double the price, but way easier to network into your system. Plus with the Boxee, you can add apps like crazy. Navi-x is the best app I've ever used, and easy to use.
Pros: It's really small
Uses very little amount of power
Cons: Allways on
Can't figure out how to play any of my media off of file server
No idea what types of files it can play