But be aware of their policies ahead of time. It's been a few years since I've flown Spirit, but when we went only a "personal item" was included in the price of airfare (the size of a smaller carry on / bag). Like most airlines they charge extra for things, and then some. A normal sized carry on, reserved seat, checked bag, snacks, etc. all cost extra. When we flew if you wanted them to print your boarding pass at the gate it wasn't free either. Their prices went up if you took care of stuff at the gate versus beforehand, so if you are going to bring a carry on or check baggage or print a boarding pass do it at their self service kiosk or ideally even before you arrive at the airport.

The seats don't recline either.

If the flight time was the best for my trip and I didn't need to bring much luggage, if their price was considerably better than a competitor, then I'd consider using them again.