We came in about 20 minutes before closing. The man who helped us was kind and the food came quickly. Both of what we ordered - carne Asada burrito and shrimp tacos - were very good. We were out before closing time, but didn't feel rushed at all.
As for ambiance - The restaurant was clean and had neat decor.
In case someone needs to know -- they only use lard in their refried beans and nothing more. I don't do any pig products and I did ask - hopefully that helps someone here.
We will definitely return!