I just picked up this set yesterday from Costco in exchange for my 37" Sceptre. It's been less than a day, but thus far I'm completely amazed by the night and day difference in useability, features, packaging, instruction manual, remote control, quality etc., compared to the Sceptre.
It wouldn't be fair for me to make a comparrison in terms of picture quality since I beleive my Sceptre had problems. The Sceptre's HD picture (while a bit dark) was excellent. The Philips is brighter from corner to corner and the picture is amazing! I honestly cannot tell the difference between the 1080i Scepter and this set in terms of sharpness!
I haven't found a baseline for all of the picture adjustments yet so I expect that SD and DVD content can look even better than it does.
One thing is certain, selecting OTA HD channels is a breeze with this set compared to the Sceptre. I can simply press in the channel number for the OTA HD channel I want. Or I can scroll through the Favorites list to find the channel and it doesn't take 8 seconds for the picture to appear. Changing OTA HD channels on the Sceptre was a real pain. I also believe that the ATSC tuner on the Philips is better. My antenna is in the same position yet I'm receiving more channnels.
No buyers remorse... at least not yet!