My family and I have flown AirTran over a dozen times (always a non-stop flight) and have had nothing but good experiences. I'm just going to add a couple more things to the previous poster's list:
1. Watch your flight times, because AirTran is notorious for changing times. Typically they send an e-mail when a flight does change, so long as you provided an e-mail at the time of booking. If the new flight time conflicts with your plans, I believe you can contact customer service, state your case, and get moved to a new time WITHOUT paying the $75 change fee. However, if you change departure or arrival days, you'll incur the fee.
2. Watch the prices even AFTER you've booked. I'm like a hawk when it comes to "airfare watching." On almost every flight I've booked with them, the prices came down AFTER booking (especially if they're running "specials"). The great thing about AirTran is that they'll issue you a credit that can be used to pay for luggage, seat upgrades or future flights (good for 1 year from day of credit issue). You will not incur a fee for this.
All you do: call the customer service number with your confirmation# and say you noticed that the prices went down. As long as there are enough seats at that particular price, they'll honor the difference. However, make sure the numbers add up. Once, I had a rep who gave us too much credit and later found out that she canceled the reservation, rebooked us, but forgot to add our seats back into the price. Then I had to find 4 more seats, but was separated from my DH and one DD because our previous seats were assigned to other passengers
The kind rep at the other end offered to give us the first row behind Business Class, but my DH would've been sitting by himself and I would've had our two DDs to contend with alone.
3. Business Class is nice with its' comfy leather chairs, extra room and complimentary snacks and beverages...however, I find it's much "louder" up front compared to the upper section of Coach.
4. I've found that many people pay for their seats at the time of booking. If you decide to "upgrade" to Business Class after you've already booked your seats, you'll just pay the difference. Also, the Business Class upgrade prices depend on the distance being traveled. For me, it's $69 (BWI-MCO). We have occasionally upgraded our seats at the gate thanks to DME getting us to the airport 2 1/2 hours early. Sometimes you just want the room.
I hope this helps just a bit and enjoy your travels:wave: