First off this strap looks MUCH better than the thomann image. Use a youtube video or something for reference.
In terms of quality everything looks and feels very leathery and strong, on the outside. The inside is a different story.
The padding material has a tendency to look dirty just due to material choice. In addition one of the two leather pieces is 'bent in place' which looks really cheap, but is actually quite sturdy.
Comfort is great. Beats any thin nylon strap by a mile.