I'm a big fan of Guy Fieri's Diners, Drive-Ins and Dives. He's not a hard hitting food critic (and I'm not sure if he even qualifies as one), but I always thought that the best time to dine at a restaurant was when Guy Fieri visits to film. His visit won't be a secret thing since his show is highly publicized, so you have an idea of when to visit. And when do you visit, you know the owners will do everything in their power to make sure their restaurant is as clean as possible, that they're using the freshest ingredients, and that they're at the top of their game.