I got really excited about this when it arrived but after trying to cook home-made burgers (as per one of the suggested recipes), I’m actually quite disappointed. As you cannot regulate the temperature at all the outside has burnt before the middle is cooked. It also made the room incredibly smokey. Despite what the instructions say, it’s actually quite difficult to clean, partly because it burns the food but also because of the lip/edge.  (Would be much easier if the plates were removable).
May give it another go at some point.