Fleer,
Piano verb is a great reverb. Underground classic. As labeled, put this thing after a piano and it's evident where the name came from. Has a good niche for the things it can do. If the full version is included, buy the stereo plugs to get Piano verb.
Likely you get the lite version which is already free, and is cool within limitations.
Like Musicroom said, anything from PSP is worth a heads up. The pseudo stereo thing is quite nice and the analyzer gives a visual rep of how the stereo field is being warped on a track. Don't know what the other two plugs do. They are too subtle for my ears.
As quality as they are, just sat back and wondered if there was anything there that would inspire me to get the next platinum album out.
Nope... Spent the money instead on a transient case of beer with about the same end point results.
John