I like and use Rimowa alu suitcases (2 wheels - these are gone the way of dinosaurs, unfortunately)
Over the many years they get banged up - they are easy to fix. The wheels never had issues. Nor have the locks. Some of the rivets fell out over the years - they were replaced without questions.The pullout handle played up on one of the bags - replaced with no questions The big advantage of alu over plastic is that it is easy to fix. Once the PC breaks, it’s game over.All in all, happy camper.