The rack case arrived damaged with right side dented from transportation (noticeable at the corners of the lids/case). This unfortunately meant that one of the lids was also damaged hard enough so that it didn't properly close anymore, which made it no longer rain proof for transportation.
For the price of this rack case, we at least expected that it would survive the transportation from Thomann to our location, especially if it's going to protect expensive amps & equipment. We didn't return the case as we had a concert a few days later and didn't had a reserve case for our newly bought power amps.
The handles and wheels are on the other hand pretty stable and we had no issues transporting the power amps over a grid path into the venue.