With the budget carriers, you tend to get what you see on the tin. That said, there are a few stand out points for Thai AirAsia. The food and beverage offerings are better quality and cheaper than average for a budget carrier. Out of Bangkok, they fly from Don Muang (I prefer that over Suvarnabhumi). Most of all, the staff appear to know what they are doing. I quite liked the clear pre-recorded arrival PA announcement. The only notable downside was they operated this flight with bus access to the apron. Don Muang is not over congested, so you would think they could find a spare gate.