I have one, and I don't use it as much as I'd have hoped. Boxee works fine as a uPnP media player. The Internet streaming performance wasn't great, so I didn't really bother with that. The Apple TV's music player is great, because it gives you everything the way you have it organized in iTunes. I just hate switching between AppleTV and Boxee, so I mostly use it for music. I already have four other uPnP media player devices (2 Xbox 360s, a PS3 and an Xbox with XBMC), so I guess I don't really need another one. For a non-technical user, it might be nice. I haven't actually tried any of the video capabilities other than watching trailers and video podcasts. That is, I haven't tried streaming video from iTunes.