The quality of the bag itself, the materials, the wheels, everything is very rugged, durable, and will probably last a very very long time. The biggest flaw, and it's in my opinion, a critical one, is the part of the bag that does not zip all the way down. Obviously those of us that have owned suitcases have all had suitcases that allowed for opening the suitcase all the way for ease of taking things in or out. Imagine if your suitcase only unzipped 3/4 of the way. That wouldn't make any sense. Why this bag only allows you to unzip it only 3/4 down, creates a situation where you have to stuff the things you are not going to need immediate access to and the bottom near the wheels, and if you load up the part with the mesh, it makes it even harder to get anything in or out because the mesh portion does not want to stay open due to the fact that it cannot really go anywhere (you really have to have this bag to understand what I am talking about).