Just over a week ago I bought a Stagg EUB online. The neck was terrible, there was an obvious bump on the E string so when I would play a G it would be almost muted no matter what I did.
On top of that, it was very hard to play. The neck is very big. I had set string height at 6-7mm which I understand is sensible for an upright. My left arm was hurting after minutes. Granted, this is certainly mostly down to the fact thay I do not know the right technique.
The seller seemed accomodating: they said they could either fix the neck or replace the instrument. I could have gone all in (have it replaced, spend 150-200 for soft strings, try to learn proper technique) bit I gave up. I am returning it for good. I am a bit paranoid about pain because od a very bad tendonitis years ago. In the future I will try other, more pricey options if I have the opportunity and see wether the problem is the Stagg or wether EUBs/DBs are just not for me.
So I guess what I want to say is: careful with the Stagg. Should you want to get one, try it first