I was looking for a piano for a solo piano record. I downloaded the free demo PianoOne from this company, which I realize would probably be a budget piano in comparison to their pay-for products, and was impressed by the sound of the instrument.
So, I bought and downloaded their Imperial Piano, which samples are from a Bosendorfer grand, for Mac.
The first patch is Imperial Audience, which sounds terrible. Imagine a piano in a toilet playing backwards.
Seeing the GUI for Mac is limited, I did not notice a patch select. The Second patch is the Imperial Grand, and is what I was looking for.
The GUI, for the Mac is not the same as for a PC. This was a big let down in my opinion. There is about half the functionality in the Mac GUI. The sound? Well, the samples sound great, with the exception of the fact that some of the notes in the C2 and C4 octave which have a slight re-triggering effect when you release those notes. When playing the instrument you can't really notice too much, but for a solo piano project this is less than ideal.
The CPU load is extremely heavy. I run a iMac dual core at 2.66ghz with 4gigs of RAM. With nothing else open in Logic or Ableton Live, Imperial Grand, taxes the CPU to almost half.
I'm still considering another piano, but $140 I guess this all in all pretty good.