Perhaps the Sangria says it all. We have been going to this restaurant for almost 40 years and my wife always says that they have the best Sangria she has ever tasted. She has tried it in many restaurants including restaurants in Mexico and Spain, which we have visited several times, The food is wonderful. We love the chicken enchiladas and the shrimp dishes and I love their flan. Both of us always say that the dip for the chips is also,the best we have ever tasted On our most recent visit, last night, I tried the shrimp and fish ceviche which was fabulous.. The staff is always very professional and friendly. The decor makes you feel like you are in an upscale restaurant in Mexico or Spain. We like to try new restaurants in Boston but have always found ourselves returning to Casa Mexico.