I'm looking at fares flying to Orlando for our summer Disney trip. The Frontier fares are cheaper than Southwest by quite a bit (even if you include the fee for baggage and seat selection on Frontier). However, I'm worried about several reviews I've seen where people say Frontier often cancels flights and can't get you rebooked the same day. The reviews seem to be really mixed. I'm not particularly concerned about the size of the seat or the baggage practices, but I am concerned about the flight being on time and them not loosing our luggage. What have your Frontier experiences been like?