I flew in and arrived after midnight at CLT (Charlotte NC). I was apprehensive about renting a car w/only a debit card - I showed them my itinerary and it was no problem! I wasn't given a hard sell on anything (upgrade, damage waiver, etc).
I returned the car at the end of my week after filling my tank just before arrival at the airport - it was accepted and that was it!
I liked the car I got (a KIA Soul from the standard size lot) and the service. My charges were actually about $10 less than expected. Anxieties alleviated thanks to Alamo!
I will rent from them again.