My experience is similar to Complete Scam's review. My wife and I planned a European vacation beginning with a departure from Miami international, which meant a 3+ hour drive from home. Therefore, we booked 2 nights at an airport hotel, Staybridge Suites at MIA, which anticipated an overnight stay upon our return to the US. Unfortunately, we had to cut our vacation short.
In a word we were advised by the hotel to contact Park Sleep Fly (PSF) for any changes, or otherwise make a new reservation, and we were also advised by PSF to contact the hotel for changes.
Despite the uncertainties with the hotel and PSF, added to airline rebooking challenges, we flew back to MIA, retrieved the car at the hotel, and drove home through the rain.
Live and learn!