Just want to report my experience with the $80 EP250.
I couldn't get it to output 1080P or even 720P on my Denon AVP-A1HD/ BenQ W6000 PJ.
But it worked perfectly on my Denon 3312/ Mitsubishi 73" DLP in the living room.
My setup: EP250 to stream BD ISO (20-40GB) from my 30TB NAS (Win7 Ultimate, 32bit) to my Denon 3312/ Mitsubishi 73" DLP.
I also tried 12GB MKV 1080p files.
Anyway, it streamed perfectly w/o any stutter or pause, etc., unlike my Roku3, which has stutter issues when playing big files like 10GB MKV.
I got Dolby TrueHD & DTS-HD MA bitstream to Denon 3312 perfectly.
So to recap: I was able to stream big size 40GB BD ISO & MKV files perfectly from my NAS to TV and got full 1080P & DTS-HD/ Dolby TrueHD. Some disc menus worked, some did not, so menu support is limited. The file Icons/Folders look ugly and not as pretty as Roku or Apple TV, but at least it worked perfectly.