Having worked at the Washburn Custom Shop, and putting together a lot of new (and warranty repair) Parkers........I have a severe dislike for them. I know a lot of guys who own them and love them, but here are my reasons:
-Carbon Fiber on neck and introduce warping as the guitar ages
-Piezo Electronics are often faulty from the factory, or may develop issues
-Frets are GLUED onto the carbon fiber fretboard with LOCK TITE...this really bothers me, and we used to have quite a few come in needing frets re glued
Those are my "as a perspective owner" reasons. My personal experience with having worked on them...sanded carbon fiber bodies, assembled and set them up.....Well I just hated working on the damn things.
The good:
-They're light
-They feel nice
-They sound pretty good
I prefer my PRS and almost all of the Washburn USA guitars that I put together over the Parkers, though. If I needed a stupidly versatile guitar, I might look at Parker. Most of the employees at the WCS hated the USA models, but absolutely adored the import models. I have to agree there, the imports are amazing bang for the buck.
YMMV, IMHO, in my experience, and all that crap.