Our stay at Moisés's place was great! We were traveling with our 10 month old baby and he happily arranged a crib and high chair for us, making it extra smooth! He was super friendly and responsive, the location is really excellent - our favorite of the places we stayed in CDMX with lots within easy walking distance.
As with most places in the city there is no heating in the building, which meant mornings and evenings could get chilly as we were there over new years, but plenty of warm blankets meant it really wasn't a huge issue and we were always comfortable sleeping, and in general you're fine in the winter there with some warm socks and a cozy sweater! Would definitely recommend, especially for people traveling with small kids.