I have a Muji check in 4 wheel spinner purchased in Asia about 10 years ago, which looks identical to the current range on their website.

On the 3rd or 4th flight Air France managed to crack one of the corners. They paid almost the full price of the case and I repaired it with a combination of duck tape and Sugru. I’ve used it 15-20 times subsequently without issue and it’s been more robust than a Rimowa poly case we bought a few years later.