Overall I had a good stay at Maria's with some bumps in the road...
PROs: Excellent location between Roma and Condesa/Hipodroma... everything hip and touristy is within walking distance. Felt very safe as a solo female travel and the porter that maintains the house was super friendly and helpful. The apartment is very pretty and spacious.
CONs: The wifi did not work for the entirety of the 2 week stay and the host stopped responding to me reaching out for updates on when it would be fixed. The pull out sofa was comfortable but I had to ask for sheets which took a few days. The apartment was very cold when I arrived (not a lot of insulation and tons of big windows/doors), but the host sent over an extra heater after a few days which solved the problem.