Great report on a product that I actually think isn't too bad.
We booked into Spirit Air with a cheap Vegas package from an online seller. If you know the fees, you just play their game. Cheaper to check 1 bag, then carry one 2. With the big front seat option, it made the flight pretty comfortable.
If any of my normal airlines didn't have a good schedule, or I'd hit status for the year, I'd fly Spirit again.