I have visited Abuelo's many time at different locations and the service is always good no matter which location.
One of my favorite dishes is the chicken and zucchini in a cream sauce. The sauce is is well balanced and very tasteful . The portions are big but they have a Senior menu and a lunch menu with same choices and smaller portions.
I would not say this is the most authentic mexican food but is probably one of my favorite mexican restaurants in the area and I like it because it offers a variety of dishes besides the traditional tex-mex ones.