Was a pleasure staying at Alfonso's place.
Location was great. In Condesa (a cool area). Also a couple of blocks from Ecobici (Mexican bike share system).
Alfonso was extremely responsive throughout the entirety of my stay.
The only thing to note is that when showering you need to turn on a heater right outside the apartment. This did not deter from my stay, as it only required to plan 10 minutes ahead of a shower.
Highly recommend!