The bag is suitable for traveling. It fits in a lot and they also rolled out well without tipping over or block, even if it is completely crammed. The transport succeeds quite well, at least as long as you do not have to constantly carry around various obstacles. Since it has no hard frame, it turns breaking when the center of gravity is not by chance is at the lower side and thus stabilizes the bag. This is particularly inconvenient if you are traveling by bus or train, for example, because it has only carrying handles on the front, but you can only take effect once must, if it is to go fast and the trolley handle is still extended. Especially when you consider how heavy and bulky bag when fully loaded. Since a handle for fast lift and would again settle well have made sense. Therefore, very inconvenient!
If the bag now holds quite a while without the rollers Block / break down or dissolve seams, then the 3 stars are earned. But for that price you get probably also a large, stable trolley suitcase.