The hamburger press works excellent. A burger is like the other. The grooves on the punch and base increase the surface area. The heat on the grill is optimally absorbed and the burger does not need so long until it has the desired degree of doneness. This is then even more toasty aromas. (In terms of the increased surface area) When the mold is rubbed inside with a little oil, the burgers are also slightly removed. The price, I think this is somewhat justified. Easy to clean.