I find the food here to be average. The service is satisfactory and the atmosphere is cozy and casual. It is located on the 2nd floor, not far from the Hiro-o station. I wouldn't frequent this place often, only if I am really craving Mexican food and I don't want to cook it at home myself.
I am not overly impressed by the quality of the food at this location or at the one in Azabu Juban. As mentioned by another poster, the burgers lack seasoning. The portions are decent and it is nice to be able to get a beer but other than that, it is really no different than a fast food joint.
A good place to go with the girls or as Dominic mentioned, the Desperate-housewive-types LOL...you will however see other demographics. It is a stylish place that offers delicious tapas. I wouldn't go here for a special occasion but it is suitable for upscale, casual dining.
This is the type of place that you visit once because of the atrocious entry fee. It is fun to do just to experience it or if you are entertaining out-of-town visitors.
I especially enjoyed the fruity flavored vodka. Who knew absolute came in so many flavors?
I do all my shopping at Nissen with one exception: the 2nd floor at National Azabu. This floor offers the best selection of new(not used), English literature anywhere in Tokyo. It also offers an array of greeting cards, cooking books, and kitchenware. The first floor not only offers processed goods: they have a fresh fish deli, a meat deli, and wonderful, French gourmet cheeses. However, it is just too small to shop comfortably not to mention the tourists who frequent this store to window shop (Japanese people from the surrounding Tokyo areas).
A quaint, cozy restaurant with limited seating capacity. Impeccable service and delicious sashimi and sushi. It is a treat to watch the handsome chef and his apprentice at work while sitting at the counter. A delightful experience.
The place to be if you have an emergent situation. Red Cross is about taking care of people from all around the world. The nurses were professional and caretaking, the doctor was an expert in his field. The only down-side was the nutritionist who was overzealous, even going through my garbage to see what I was eating.