I have the Thomann Bass Gigbag Premium and I never had problems with it, although I have had it for many years.
However, I have some issues with the Thomann Acoustic-Steel Gigbag Premium:
The right strap started tearing apart after a few weeks of use, so I had to stitch it up myself in order to keep using the bag
Also, the pocket at the front is not big enough for the A4 pockets / folders that I'm using, so I have to force them in. I use lots of printed music, so folders are very important for me.
On the plus side it's fully waterproof and protects the guitar well from hits etc.