Great place and amazing food at very reasonable prices. I had the grilled octopus (pulpo asado). The price is $15 and I was expecting to get a small appetizer. I got surprised by a huge full portion that had the entire octopus. I've never eaten the whole thing. Most restaurants give you a few pieces for this price, but at Mariscos El Puerto I got a full pound or more of pure meat.
The service is also very friendly. All the servers were constantly checking on me ready to fulfill my needs.
You have to enjoy also Mexican mariachi and you will fall in love with this nice restaurant.