I got the 151FD about 6 weeks ago for bedroom; I also have a commercial 65" Panasonic(11UK) in the family room to compare.I have tried to record and watch same HD and SD programming and Blurays' on both TV's for A-B comparisons.
Pioneer really shines under ISF modes with a depth and 3-dimensionality to the picture not seen in other TV's.
If you get the 151, you must unlock the ISF modes using CONTROLCAL or by a calibrator. Even with the 150 Hr. break-in and the settings from AVS, other picture modes were OK, nothing special. But once I unlocked the ISF modes, the picture quality went up several notches to uncomparable. And this is prior to any calibration as my ISF mode settings are entirely default.
I can't bear to use any other mode now due to dramatically superior PQ in ISF modes. IMHO, anyone using Elite 151FD without trying ISF modes is missing the full enjoyment of the TV.
Also, since you are going to use the TV speakers, the Pio elites have the best in-built speakers of any TV I have seen or read about (perhaps a B&O plasma may be better). Pio speakers have 36 watts output with well spaced speakers. For comparison, the new top-of-the-line Panasonic 65V10 has 20 watt sound output and has been described to have a "Tinny" sound.
My panel from BB/MHT has been perfect with no buzz or Pixel problems. Heat and power consumption are not issues at all in my experience.