Order 550 from Amazon on Monday evening, shipped on Tuesday and received at noon on Thursday. UPS dropped it at my door, packed in original box for all to see. So beware if you live in an area where it might go missing from your front porch.
This replaces one I got on Saturday from Circuit City, saving me a little over $100. All I did was swap out units and the new one works fine. I like the full system reset button in the menu. It allowed me to reset the old unit back to full factory defaults. Someone will get a good as new unit now without my settings to worry about.
I have had this for a week now and really like it. It replaces a Samsung 1200 that I am moving to a secondary location. I think the audio is better, as I use analog inputs and could not get the lossless from the 1200 at all. Picture seems as good to me. I am still tweaking the black levels some but overall I think it is fine. I can not do a side by side comparison, but I suspect the Samsung has an edge in the upconvertind area due to is Reon chip, but it is probably not a deal breaker for me. The player is MUCH faster loading and responding than the Samsung. So far I have had no issues at all with any movie, other than having to do a 10ms audio delay across the board to avoid lip sync. I have that feature in my AVR but never used it with the 1200. It looks like all discs from the 550 require it, so I set it into the player.
I reset the video to MEMORY but zeroed out the values so I use only the display tweaks. I use the player for all upconverting, not the display, so output is set to 1080p. Cosmetically it is very nice. I give it two thumbs up!!!!