I've been here twice now, once for a birthday and once for a date night, and been impressed both times.
I've tried their house margarita and their hibicus margarita - both were very good, but there really wasn't much of a difference in taste.
They have a great variety of tacos on the menu for about 4 bucks each. Their fish tacos are delicious. They have a 2 taco combo with rice and beans for I think 8.95.
I've come on a weekend night both times, and both times the place was pretty empty. I'm not sure why! They've got a great selection of drinks and this would be a fun place to get a night out in Old Town started. I will definitely come back!