Note that this review is for the fretless version.
I'm an intermediate player, I've got it 4 days ago, it's my first fretless and 5-stringer, first impressions is that it sounds great, it's BEAUTIFUL and the neck is very comfortable to play on. I love the wood grain of the Mahagony and 7 piece neck through ! It feels built sturdy and robust but only wear of time and use will tell.
The 5th string sounds tensed, growly and good to my taste.
It's stringed with D'addario roundwound, I like them very much, the bass is growly with them, and I will try to wear them out before I try the Pyramid black nylon tape wound I bought with it.
It came with some minor wood flaws in the finish, one in the back, a very small tear, one on the neck - a 3 cmx0.5cm missed finish stripe, some others which are less important and the most important one, is a very small but nudging bump on the back of the neck, and the left hand thumb sometimes feel it, but I will get use to it, and if not, I'll sand down it myself...
There is no passive mode for the pickups and It has a modern kind of sound (others would simply call it active sound), I couldn't really get to that Jazz bass Jaco type of bridge sound (at least not with a flat amp), but I have it in my fretted Jazz bass so I don't care for it too much.
I got it with that comfortable higher action which gives me that typical jazzy "fretless envelope" only on the first 2 strings, I guess I have to lower the action a bit to get more of that vibe which I like.
Intonation seems correct out of the box (+-2 cents for the 12 fret harmonics compared to open strings at least according to my phone which has its microphone limitations).
Overall VERY GOOD value for the money, and I also think it's a great fretless 5-stringer instrument to begin with as an intermediate player, I'm not a pro though.
It took its time to arrive from Germany to Israel but it was late only by a few days from Thomann estimations. Thomann service were very kind and explained patiently what might cause the delay, and opened an investigation with DHL, but it wasn't required in the end.
Notice is not lined in the frets, there are only marks on the upper side of the neck - but that was good enough for me for now, time will tell, as I still don't play it well.
Good 5th string sound
Relatively not expensive
Good play-abiliy out of the box
Nice strings though some would rather something flatter wound for fretless
No passive/active switch, I might add it one day myself
Minor wood flaws
Less versatile sound than a Jazz Bass (not sure it's a con...)