My feedback on the paint jobs after having had a number of painted VB frames is that for the cost, you can't beat it and for a relatively small price you get a custom paint job that can really set your bike apart.
On the design front just be very clear on what you want, include links, photos, colour numbers, ask for mock ups and give feedback. Don't make any assumptions.
On the quality, they can scratch fairly easy, which hasn't been a deal breaker for me but spraying on a clear coat after getting the frame could be a quick solution I may try next.