I just bought this in the store on sale for my 5 year old daughter. She absolutely loves it! It is the perfect size for her and she can probably fit a weeks worth of clothes in it. The duffel will make a great carry on. It seems to be sturdy, but I haven't been on a trip with it yet. It will be nice to not have to check every bag to see which is ours when arriving at an airport! I am going to purchase the skull 3 piece for my son.