Well, first observations based on a few minutes of playing when I should be working:
Outputs include component, S-Vid, RCA/NTSC, and DVI via a "D4" jack. A quick Google suggests that few if any vendors sell D4 connectors/adapters in the US. So that'll be interesting. Audio out is RCA or Coax or Optical.
Overall, few surprises. MPG playback of DVD-ready files recorded through Snapstream/PVR-250 are beautiful, and fast forward is actually usable. But the display letterboxed in both directions regardless of what aspect settings I use on the TV/Player. I guess there are a few more combinations to try, but it's pretty strange. But sound synch seems pretty good, at least on these files. I fast forwarded to the second inning of Game 7, and the crack of Damon's bat as he hit that grand slam was right on. I'll keep playing it over and over again, just to be sure.
I'll try some other file formats later, I mostly just use MPEG2's.
The software setup is fairly straightforward, I've used a Prismiq and a MediaMVP previously, and the Buffalo setup is similar in concept. Still haven't spent enough time with it to say much meaningful. Two observations: the "shuffle" function is apparently set on the server, I don't see any way to turn it on/off from the player.
And like all the players I've seen, it won't let you add songs to a "Now Playing" list. This is my pet peeve, because that's how I like to listen to MP3's, I go through my collection and queue up the stuff I'm in the mood for. Haven't yet found a player that allows this. It does play .m3u playlists.
I was surprised to see that it includes an Internet browser, it apparently works with your IE Favorites, so you can surf those with the remote. You can also type in text using the remote, if you're a masochist. I wonder if they could add USB keyboard support? Output on a 720p screen is pretty readable, so I was able to read Google news articles from several feet away.
Haven't hooked up wireless yet, because it doesn't have WPA, I'll have to set up a separate wireless network for it. Why the heck is it so difficult to support WPA?
That's all for now, as I spend more time with it, I'll try and update as appropriate. Generally pleased; it's about what I expected, which is a little less than what I want.