I used them from Charleston, SC to Dulles, and loved it. The flight was pretty empty, one class seating, and they had a plane side valet service for my bag. I didn't want to check it, as it was a smaller piece of luggage, and as I went to board, a young lady told me it probably wouldn't fit the overhead, as it was a smaller jet. She said I could check it with her, and when we arrived at Dulles, it would be on a cart right next to the plane as I got off, very cool idea, no going to the carousel. I lke using smaller discount airlines, in fact I'll be using Spirit Air out of Atlantic City to MCO in Oct.