I met a couple of friends here for dinner while in Sin City - I really liked that we were seated more to the interior of the restaurant, away from the hotel walkway (Signature to MGM). Diego is deceiving, it is much larger than it looks from the outside. I was feeling a bit under the weather thanks to no one else but myself from the night before... otherwise I would have ordered that tableside made guac.
We had 3-4 waiters and it really was impressive service-wise. Everyone was very gracious and friendly. Apparently, the drinks were very good, I stuck with water and my glass was never left empty. 2 of us ordered the chicken enchiladas and one had a cheese enchilada. All amazing, I would return here if there were not 101865653 other great eateries in Vegas (no appies this time around but they do offer tortilla chips and salsas (3) once you order). I liked the rice on the plate a lot. The beans, I think you just have to like refried beans but they were good. The portion was decent. Authentic tasting to say the least. I love real corn tortillas!
I would have given 5 stars to Diego but I was a teeny bit put out that they did not offer shrimp enchiladas, my fave. No idea why that is but for sure next time I will try something else.
I think the salsas for the chips were the best I have ever had! Had some kick unlike Canadian restaurants that just do not seem to do Mexican right from what I have tasted. Sad but true.