We used Payless several years back because they were really cheap and what a mistake on my part.
Everything about them is slow, slow, slow. Slow shuttle services, slow counter service and I was not impressed with the condition of their vehicles.
$100 is a lot of money but you might be able to find just a good a deal using discount codes from other major rental companies in Orlando.
You'll get a car from Payless but be prepare for some aggrevation. Personally, I'd never rent from Payless again period.