I finally got a chance to sit in a P90D with standard sound. Now I can tell you that I'm very happy to save $2500 on the UHFS. IMO, the clarity is not too far off when bass is lacking marginally. To be fair, I only listen to HD FM and MP3 stored in USB and I didn't get to play the settings and turn off Dolby. I'm not sure if FLAC can sound much better on UHFS and I never listen to FLAC.