I just got back from using this on a short trip/flight. It Worked great.it has no support or shape to it at all. This is a good thing if you want to pack it And use it later during your trip, but its a bad thing if you're using it the whole way because theres no form at all to the bag.  It depends on what you're looking for. I am thinking of putting some sort of piece of cardboard or something in the bottom of it to make it hold its shape better while it sits on top of my rolling suitcase/bag. Im sure it won't last for a hugely long time, but for the price you can buy 1 every time you need one. Its nice not to have something on my shoulder the whole way thru the airport, and it fit perfectly under the airplane seat.  If it gets me thru my trip to key west next week I will be ecstatic, and will probably get one in a different color:) get one for this price! Update: made it thru Key West trip and still going strong. Love it. Any extra use out if it at this point is bonus for the cheap price. I did put cardboard in the bottom and it helped. I don't see how anyone could be disappointed with this bag!