Have gone to Bobby Flay's Mesa Grill twice in Las Vegas. The first time it was fantastic, the second time not so much. For some reasons there is huge quality differences in the dishes.
The first time I had Pork Tenderloin which was delicious. My girlfriend and son had the Filet Mignon. For sides we had the mashed potatoes and Corn Tamales. Everything was delicious and we were looking forward to going back the next time we were in Vegas.
The second time as a big disappointment however. This time I had the Grilled Lamb chops, while my family had the Rib Eye steak. The lamb lacked flavor, and the steak as overdone.
I would gladly go back and have what I ate the first time, but would recommend everyone to avoid what we had the second.