Overall our stay at Gonzalo's place was fairly good. We had a bumpy start to the trip with a few miscommunications. But Angela quickly remedied the issues and the rest of our stay was very nice.
The location and apartment are both excellent. It is only a 15 minute walk from the Zocalo square and even closer to the Palace of Fine Arts. There are tons of restaurants and markets nearby. And you can easily reach the subway system from the house. It is also a very safe location and you can leave your valuables in the apartment with no worries.
The apartment itself was in great shape and looks exactly as it does in the picture. The kitchen is pretty well equipped and the rooms are nice, cozy, and clean.

Overall we had a great stay and would stay here again. Thanks Gonzalo & Sandra!