I have been fortunate to see PT twice in concert and I can attest that they were two of the best concerts I've seen. And I have been to a LOT of concerts.
Their sound guy is among the best in the business. The sound quality he achieved at the State Theater in Falls Church, VA was astonishing. And the State is a very tough room in which to play.
PT's sound is constantly evolving, their earlier albums sound nothing like their latest. Nonetheless, there is a feeling that they really do care about sound quality and that they do whatever they can to further that.
The fact that Steven Wilson was chosen by King Crimson, Yes, ELP, and Jethro Tull to re-mix their albums for surround speaks volumes about the genius that is Steven Wilson.
If you ever get the chance to see them in concert, do NOT fail to do so....
-RW-