Choose your answer: is the following review positive or negative?

Nasty margarita and awful service. Came in on a Thursday night before a movie and it was not good. Maybe it's because we sat at the bar? I'm not sure, but no one wanted to help us. The house margarita was so gross, couldn't drink it. This place is like the Chili's of mexican food.

Possible answers:
(a). negative.
(b). positive.
(a).