The Long Piano demo is the Purgatory Creek MIDI file, so if you want a direct comparison with other keyboards and soft-pianos, visit Purgatorycreek.com and check it out for yourselves. Proof of the pudding.......

BTW, James..... if I were you, I would re-record the Long Piano file with quite a bit less reverb. That's a pretty drastic amount of 'wet' for a player perspective..... plus pretty much all the Purgatory Creek files are somewhat drier, making yours sound a bit distant in comparison.