I've heard nothing but bad things about PRS's. I don't know too much about them (blues_rock_axeman's post is the most useful analysis I've see so far), but they seem be hated be almost anyone who does not use them.
I don't use them, but I love them! friggin awesome guitars!!
Point taken. After looking at the artist list it looks like Nickelback is not entirely representative of all the artists that use PRS. I noticed that one of Bob Dylan's guitarist's uses a PRS --- I saw Bob and his band in March, and if there was a PRS guitar involved, it sounded damn good to me.
But I've seen people refer to the PRS tone as screechy and annoying. On another board, people were slamming Carlos Santana for using PRS, even though the thread had nothing to do with PRS guitars.