I had a Carvin neck on a homemade guitar back in the early 90s. It was a good playing neck. Very thin, very flat radius, nicely done frets.
Unfortunately, it also twisted after a few years, but that was mainly due to the fact that at the time, my music room was my parents' fairly cool, damp basement.
I also had a Carvin licensed Floyd Rose on that guitar, and it was kind of crappy.
I think they've reinforced their necks since then, and they use OFRs now too, I think.
I know my old guitar teacher had a DC127 or whatever they are for a while and it was a nice guitar.
I also played Mystixboi's white CT6 and it was a nice playing guitar.
They always just seem a little vanilla to me for some reason.