I went here with my husband and our whole experience was wonderful! This place just seems like it was the owner's dream to open a restaurant and that's what they did. It seems super authentic from the atmosphere right down to the food. I've never been to Mexico but I was instantly brought back to seaside restaurants in Brazil. The service was great and our server was super friendly.
I ordered the fried red snapper with garlic and it was absolutely amazing! The plate looked beautiful and the flavor was so good. It came with french fries (this is a common thing at a Brazilian seaside place so I just assume it is in Mexico as well), rice, garlic bread (yummy) and a salad (the salad looked nice but was mainly iceberg, which I don't care for, however, I'll point back to the fact that I think this is traditional). My husband wasn't that hungry so he got tacos el pastor, which he said were good.
I've seen some complaints that I wanted to give my 2 cents on. This is a Mexican seafood restaurant which means it isn't going to be like stereotypical Mexican place that many people are used to. If you go in expecting it to be like the more common U.S. Mexican places you WILL be disappointed. While the menu isn't exclusively seafood, seafood is really what this place is about and that's what they do best. Don't give this place a bad rating because you didn't realize it's a fish restaurant. Also, I've seen people complain about prices as well which I really don't understand. Seafood is usually pricey. That's just how it is. When you go here you should expect to pay seafood restaurant prices, they need to charge enough to stay in business! I'm not saying you should eat here if you're not into the food, but it isn't really fair to judge this place because you were under a misconception about what it is or should be.
Las Islas Del Mar transports you right to the Mexican seaside and I highly recommend it!