I originally bought this for the Harley Benton PRS style guitar, but that guitar fit well in one of the normal Thomann Strat style cases, so I'm not using it for that.
I decided to put my Harley Benton RB-612BK 12 string in there and, to my surprise, it fits perfectly. No wobbling about. I was very happy about this, as I didn't think I would be able to find a case that fit it.
I also tried fitting a Schecter C1 Custom in there and it wobbled about a bit. If you fold up a strap and put it down the side, it helps keep it in place.
All in all, quite a versatile case. Very happy with it