I have flown air tran several times, to a few different places. The only trouble I had a couple of times was that they didn't really follow the assigned seating. Once, I got on the plane, and I was supposed to be sitting in the second row, but someone was sitting in my seat. I had to move to the very back of the plane and ended up sitting next to a screaming child...so I wasn't very happy with that. I asked the flight attendant if she could ask the person sitting in my seat to move (especially since the seats are assigned, i got up at 5:30 in the morning the day before to reserve mine), and she wouldn't. By the time I got off the plane (which took forever, sitting in the last row), I didn't feel like going to complain anymore, but I was still mad. That is one of the things they advertise, assigned seats. This happened another time, but this time wasn't as bad, someone just took my window seat. But still, I reserved my seat ahead of time, and if they are going to say they have assigned seats, they should enforce it!! Also they lost my bag on that flight as well...so that wasn't such a good trip. But I did get it back later. But I really do like Air Tran, and that is what we always fly, but just beware of the assigned seat problem, it has happened several times.