Mr Biggz
I know there are not many Spirit fans on this board, but I for one have used them exclusively for 4 years now. (and will again in January) My choices are Philadelpha, Newark or AC - AC is Spirit and 5 minutes from my house. They have had the best rates, even including add ons and my flights have never had a problem (and I'm knocking on that wood now I guess I'm one of the lucky ones!