The frets are more a medium or medium jumbo, and I'm comparing them to what I have on my other guitars. Definitely not vintage size.
As for the bridge, changing string gauges/tuning hasn't been a problem for me. I've had 9-42, 9-46 and 10-46 on it tuned to both standard A440 and down 1/2 step. No issues whatsoever. There is some adjustment via the allen screws on the back of the bridge behind the posts but I haven't had to adjust them at all.
Now, when I replaced the nut, it became EXTREMELY important to get those slots cut PERFECT or the intonation was off. That's one good thing about this wraparound. You want to do nut work? Use one of these to make sure you get it dialed in just right.