I finally went to Tasty Burger the other day, and I think I enjoyed the wrapper even more than the burger itself. I loved the design. They are made so that a small portion of the wrapper folds down, exposing just the part of the burger you are about to bite into. As you eat more and more of the burger, the rest of the wrapper is made to bunch up more and more. It quite conveniently solves the usual problem of having to decide to a). wrestle with a big wrapper that tries to attack your face while you eat your burger or b). unwrap your entire burger before eating it and watch sadly as sauce and small condiments drop to the table. The product packaging itself adds to the experience of the restaurant, creating a memorable interaction with their food.