I have flown AirTran twice and had no problem with it either time. There is however an American Trans Air, which I think is a little less well known. I've never flown that airline, but I have a cousin who did once and she said it was horrible, she didn't give a lot of details though. If it's airtran, i say go for it

. If it is in fact American Trans Air aka ATA,

I've only heard one story, but as I said it wasn't very good.