I just came back from the buffet using this Travelzoo deal. Like a good slickdealer, I woke up and immediately looked on travelzoo and bought this. Obviously, I don't have a printer handy while I'm on vacation, but there is a handy dandy UPS store in the Flamingo hotel. Just tell the employee that you'd like to email them a document to print and you're set for $0.55.
As for the buffet, it was decent. I would give it a 6.5/10. The eggs Benedict was great. The champagne was indeed unlimited, as stated. Good deal if you're lookin for a buffet a step up from Terribles.