Downtown Grand requires a $50 CC hold or $100 cash deposit upon check in which is refunded at check out. At both MB and PH I asked not to place a hold and neither swiped my card nor was a hold put on it. Those were basic rooms and my understanding is for anything higher in room category they do place a hold. Avis car rental only charged my credit card for the amount of the rental, no hold. Other companies wanted to put a $300 hold on it for the car. Avis will accept a debit card but they do a credit check and put a hold on it for around $300 I think she told the guy in front of me. Here is a key bit of info, if you prepay for your car rental with Avis, they will put a hold on your card but if you don't prepay they do not. Not sure why.