I am new to traveling with only a carryon.  Turns out to be a great minimalist experience.  This bag was given to me by wife.  I have used it once on a 5000+ mile trip through 3 airports each way and it has stood up well.  Carried on to 2 flights and walked through 3 airports with it and checked in through 3 airports  Obviously, I can't address long term sturdiness, but on this first voyage it served me well.  The wheels roll freely either 2 or 4 on the ground.  Handles are sturdy and easily extended.  Space inside was adequate for our 8 day journey. Fits easily in the overhead compartment, didn't try it under the seat ahead of me.  Construction appears and feels solid.  The locking mechanism is workswell.  The zipper works well, but do need to be aware of keeping bottom and top aligned to get the zipper to work well.  My wife got me the bronze colored and that worked well because it looked different from most of the other bags.  All and all a very good gift and purchase.