This was the first time I flew with Southwest airline. Overall it was a positive first impression. I just wish that they didn't have the Wright and Shelby amendments: travel into and out of Dallas Love Field is subject to the limitations of the Wright and Shelby Amendments; federal law prohibits Southwest from offering transportation for sale between Dallas Love Field and any point beyond Texas, Louisiana, Arkansas, Oklahoma, New Mexico, Mississippi, and Alabama. I was amazed at how efficient they operated their flights. Boarding took place only 15 minutes before departure. As soon as everyone was settled into their seat, the plane departed the gate. Both cases for my roundtrip, they departed the gate about 5-7 minutes later than schedule, the arrivals were however on time. The only thing I didn't like is that they have free seating, based on how early you checked in at the airport. I wish I can pick and choose the seat at the time I buy the ticket online.