^
If you're thinking about streaming from a NAS, buy whatever you want as long as it's not AC Ryan.
But if you plan on using local media such as a USB drive, then you'll "probably" not go insane.

It's saving grace is that it actually plays pretty much anything you throw at it.
That's it.
The Fluxx could prove itself to be a very competent player.
A find it a bit too expensive since:
* Xtreamer Ultra came along
* You're stuck with AC Ryan firmware.
If it could run XBMC or Boxee then it would just be a matter of hardware/design preferences.