We have flown AirTran several times from Philadelphia to MCO. They have newer planes and the staff is friendly and efficient. They often have fare sales so keep going to the airtran.com site. The only complaint I have is that if you book far in advance they have a bad habit of changing your flight times. They normally e-mail you to alert you, but I have read other posts where people were not notified. Sometimes the changes are minor but not always. I do like the ease of picking out your seats at home and printing out the boarding passes. I also like their option of upgrading to business class at the airport for $50.00 if there are seats available. We did this going to and back from Orlando last month. It's nice with the wider seats and it is so easy to get off the plane when you are right up front. All in all we have been very satisfied with AirTran........just wish they would stick to a schedule and leave it alone!