We flew into Sanford in October via TMA. The airport is basic, a small magazine and snack shop, a quick food eatery, rental car spots and shuttle spots, not much else. It takes about 20 minutes longer each way from Sanford to Disney or Universal than the Orlando International and the Towncars charge about 50-60 dollars more round trip to pick up/drop off there. It was fine for us as all we wanted was a place to sit until the plane took us away.
As far as TMA, the flight was nice, shorter than others it seemed, and they served meals. Just beware of their cancellation policy as they are a charter flight and are not obligated to book you on another flight if they cancel theirs.