Bar



Quite lively. There is a pretty big bar that serves up margaritas, mojitos, and other "Mexican" drinks. They have an extensive tequila selection, including some special Cuervo that costs $500 a shot!!(No that is not a typo). Margaritas were decent, although nothing to write home about.
Restaurant



There are about 10 tables near the back of the space. The restaurant was quite busy on Saturday night, but the wait was only ~25 minutes. There were lots of pictures of marlins and sailfish that had been caught off Cabo San Lucas on most of the walls. There was even a stuffed sailfish hanging above the kitchen. Overall it felt and looked like what you would expect a Mexican restaurant to look like.
Food

If you had never had real Mexican food before, great. Otherwise, it was average at best. The salsa was nothing more than tomato sauce with some cilantro and pepper in it. The food was fairly bland and it appeared that they simply doused everything in Tabasco after it had been cooked in order to give it that "authentic" flavor. On the bright side, the tortilla chips weren't bad.
Price:


Dinner, drinks, and gratuity came out to $25GBP per person. Not bad for London standards, but the food was sub par.
Overall:

If this is the best Mexican food that they have here, it is going to be a long 12 months in London....