I haven't seen any comments on this RP HDTV on here (Mitsu WD52528). I saw side by side with a Samsung HLR5067 and they both looked very good. I'm considering both. The only advantages I noticed about the Mitsu was that it was 2" bigger and it seemed to do a better job up-converting SD channels.
I'm concerned about delay caused by resolution converting on the Samsungs. From some of the posts here it sounds like even the HLR's still have a slight delay. I play FPS games so I would notice this if it exists.
I'm also considering the JVC HD527BP (or HD-52G786) and the RCA Screnium HD50LPW175. The RCA would be my budget choice at $300-$500 cheaper than the others. It still looked great to me even though it wobbles to reach 720p resolutions.