I have used it for restaurants in the DC area. They have $100 gift certificates available for around $30...a great deal. Turns out these gift certificates are excess from Bon Appetit magazine and are totally legit. That said, it was a complete pain to get the restaurants to accept them. At both places where I used them, they were literally baffled by how I had obtained them and had to call the owner to determine if they were real. It was a real hassle. I guess the only thing I can say about Skyauction is that it can be a good deal, but don't be surprised if you encounter some hassle getting the discount.