Mauricio is by far the most attentive host I've met on Airbnb. Went well above the norm to meet us late in the evening and show us around the neighborhood. The place itself is very cozy and neat. You do sleep downstairs which can get a bit dark but hopefully you aren't staying indoors too much in Mexico City! The location itself is quite central so makes walking to major parts of the city fairly easy (20-35 minutes).