I usually go for a late lunch. This place is usually crowded at lunch, especially since they have lunch specials. So a late lunch (they serve lunch past 2pm) is the way to go. You still get the good deals, but it is a nice quiet restaurant and the serving staff is more patient with you.
They offer standard mexican far, the drinks are pretty good and the deserts too.
It is usually crowded lunch and dinner times and on weekends, so off peak-times are really recommended.