Well listen to this living room upright, and decide yourself:
http://www.sampletekk.com/proddemos/vertikal/VertikalJazzDemoGS3_2.mp3 http://www.sampletekk.com/proddemos/vertikal/VertikalPopDemoGS3_1.mp3 http://www.sampletekk.com/proddemos/vertikal/VertikalJazzDemoGS3_1.mp3

Some info:

The Instrument – Yamaha M5J Upright
48 true samples per recorded note, 16 pedal up, 16 pedal down and 16 releasesamples.
Recorded in 24 bit 44.1 kHz.
Custom impulses captured to use in convoluting reverbs as GigaPulse or Kontakt 2 to emulate pedal down and piano resonance
Two different perspectives recorded giving you a choice of two different pianosounds
Planned releasedate: 1:st of June.
Price: Not yet set.