We fly Spirit often as well. They are great, we always choose to fly "spirit plus" which is their business class. It is very affordable and we find the extra money worth it. First class check in, first on the plane, first off, larger seats, snacks and generally better service. With that said, I will throw one caution out there. EVERY trip that we have taken with Spirit our plane times have changed. For the most part it is not by much, but can be as our upcoming trip to FLL has dramatically. They will get you on another flight, not just cancel you, but if you have to get somewhere ON TIME, I would say book with someone else. We are flying them for our cruise in March but we are flying in the day before so not as worried. Any questions, just let me know!