Loud especially if someone has a birthday then you want to scream because their singing and banging is unbearable! Food is only fair and waiters are less than friendly and at times downright rude. They
def have their fav customers. The only good quality about Rio is the outdoor patio but only at times when it is not filled with loud vulgar customers.
If you want authentic tasting traditional Mexican food this is the place! The other Mexican restaurants in the area El  Puente  and San Marcos do not have the authentic taste. I have tried both a couple times and found the food very bland in my opinion. Rio also has great drink specials! Best restaurant in the area for the price. Blue Naples  is a great second choice if you are not up for Mexican.
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