We usually head to Los Montanas for our Mexican food and margarita fix, but decided to give this place, right across the street, a try instead. (It's been there for years, but we had never tried it, probably because they are always trying a bit too hard--constantly mailing coupons and offering specials--tactics that tend to make me wary.) Anyway, we were pleasantly surprised by the good food and service and excellent margaritas.
The carnitas were perfectly cooked: a lot of places overcook them or hold them so long that they end up dried out and chewy; these were pleasantly crunchy and moist and nicely seasoned. The chile verde was good, too: tasty and meltingly tender. The accompanying rice and refried beans were OK; nothing special. The margaritas were really great, better than just about any others we've tried in the Tri-Valley area. They have something like 100+ different tequilas to choose from, along with a very long list of specialty cocktails. Prices are reasonable across the board.
Service was very friendly and efficient, but it was mid-afternoon with few other occupied tables, so I'm not sure if it's the same during a busy meal period.
The only thing seriously lacking was ambiance: the furnishings and decor in the dining room are worn and dated, but at least it was neat and very clean.
It's definitely a place that I'd recommend, and that we'll return to.