I had a PRS Tremonti a couple of years ago and really liked the way it sounded.
I bought this to pair with a PRS \m/ neck pickup to put into a 594 replating the 58/15LT pair in there.
The sound is as I remember it, huge voice, very full and powerful but still clear and with excellent note separation even with obscene amounts of gain.
Pairs well with the \m/ neck pickup.
Definitely suits the 594 body if you're after a bit more grunt than the original ones.
Easy to install and most of the circuit diagrams are on the PRS website.