I went there with some co-workers after work one evening. The restaurant is tucked away in what looks like a strip mall but it was only five minutes away from the madness of Arundel Mills and it wasn't overly packed so that was nice.
The setup, as the name implies, is like a cantina. You walk in, place your order, find a table, wait for your number to be called and pick up your food so it's hard to rate the "service" I can say that there was a guy constantly moving around the dining area clearing tables, picking up plates etc.
I shared a plain cheese pizza with a co-worker and it was just okay. Maybe I'm a bit biased because I really like Flippin Pizza. Anyway, the rest of the table ranted and raved about their food (mussels, and I think some sort of pasta with seafood). I'll probably go again and try something else in which case I'll update my review.