Made a reservation with Firefly in Las Vegas (they are located in the rental center, not off-site), for a compact car.

Showed up this morning (Sunday) at 8a, hardly anyone was around that early in the rental center.

A few people ahead of me were huffing and puffing, but I didn't know why...I quickly found out.

I was told they had no economy or compact cars, they had one full size car which I could have for an additional cost. I said I'd wait. Agent said ok, would be about 30m, which I said ok. Then he said there were "4 or 5" people ahead of me also waiting for a compact car. I said I'd wait again. This time he said there was about a 5% chance he'd have one in the next hour, and he really couldn't say when one might be available.

I got the clue. Made a reservation at the same price with Fox, cancelled my Firefly reservation.

Every other car rental company has provided an upgrade at no cost if the rental reserved is not available. Absolutely unacceptable, as is the express impression I got (true or not) that this was just one more way to generate add'l fees. In any event, was terrible customer service the way he handled it, left a very bad taste in my mouth.

Last time I bother booking with Firefly if that's their policies. Happy to share my experience here in case anyone else is thinking about booking a reservation with Firefly, especially at the Las Vegas location.