We spent a week at Daniel's apartment with our two kids. Daniel was kind enough to let us check in early, which was much appreciated after our morning arrival to Mexico City. There were some beers in the fridge and coffee supplied, which were also appreciated.
The condo was very clean and matched the description and photos. It's a little small for 4 people (e.g. the eating counter seats 3), but we were usually out during the day, so this wasn't much of an issue for us. There was some hammering going on in the building during the day, but it was fairly quiet at night. The location was great for us--close to two metro lines and walking distance to the historic center.
The internet wasn't working when we arrived at the condo, but Daniel was able to get it fixed quickly once I was able to get in touch with him. He was quick to respond to a few other questions. We enjoyed our stay in Mexico City and would definitely recommend his apartment.