This bass is simply amazing. The piezo pickup gives it a twang you don't usually find in fretless basses. It's very well built and sounds incredible. A more detailed EQ on the piezo would have been nice, though. The 30 "frets" make it difficult to slap and pop, but that's not really a Bass for slapping so it's not a major downside in my opinion.
All in all, an amazing buy. I expected such a well built, well sounding instruments to cost at least a few hundred euros more.