Used suitcase for a road trip in the US ... 5 weeks, 8500 km and a good twenty changing hotels. The case is returned as new ... She is strong enough to support the aircraft, and casters are strong enough to bear without flinching stairs, and perfectly run on asphalt, tile, carpet ... no worries with the three closures which also seem quite robust and therefore not easy to force ... The seemingly fragile handle is also robust enough to withstand the weight of a suitcase full without bending. Finally the ultimate test: during a match in a crowded train, I sat on it for an hour (I exceed the quintal ...) without deforming or bending casters ... This shows the strength of the plastic ... The dimensions correspond to the maximum permitted by the most finicky airlines, and the case is largely strong enough to support the maximum permissible weight ... In short a very good investment if you plan to travel far and / or often ... It will not let you down anytime soon ...