Recommend....Used this last week. Was a gift from my employer. It actually saved me $260 which was like a free night. Booked Fort lauderdale Hilton. Better than AAA or anything else combined. I checked All competing sites. Confirmation was from Hilton. No trouble checking in. Would def use it again.
You buy a discount card at http://www.hotelandresortcard.com/ and then hope you realize anywhere close to the discounts they are advertising. I have no doubt that it might work in some cases. But when it first was being talked about a while back I never saw anything remotely approaching the great values the OP describes.