I just got back from having my wedding at Fiesta Americana Condesa. Overall, the resort is top notch in food, service, pool activities, and beach. We seriously felt like a celebrity wherever we went. The rooms are dated though, we had several friends who had to move rooms because of air and phone not working and another group that did not have their adjoining rooms ready until the second night.
Now to the wedding...my advice is to take care of any payment before you go. We had issues with not meeting up with the wedding coordinator when we got there. I asked the front desk to call for her and they told me she was not there, and she said she was in the lobby looking for me. Whatever happened, we did not see her. She came up for payment the afternoon of the wedding and my card was rang for 800$ more than originally quoted in the emails before we went. Then she asked to see my id and credit card for the 2nd time to scan as we were walking out for family pictures. When I asked for a bill breakdown all that was added was a 15% service charge. She was never really able to tell me what a "service charge" was, I am assuming gratuity. Which is fine, but I would have just liked to know it ahead of time. The officiant skipped a reading that one of my nieces was going to do during the ceremony and there were not enough chairs at each table to match up with my seating chart at the reception, and my guest book directions were not sitting by the postcards (no pen by the guest book either).
We are a very laid back couple and did not let it ruin our day, but it more just annoyed me after months of emails and going back and forth that several things were overlooked.
Good Luck :-)