Recently tried both The Counter and the Nook and was extremely disappointed.
Although I ordered and received the burgers medium rare, they were lacking in taste/somewhat dry tasting, despite looking pink and presumably juicy. Not sure the problem. I suspect though that they may be using beef which is too lean (i.e. not enough fat). I remember seeing Nancy Silverton's recipe for burgers which advised to use beef that was at least 20% fat.