My boyfriend and I stayed at Alex's place for a 4 day weekend. It was fantastic. Exactly as described - the outdoor space is particularly beautiful. The apartment is in a fantastic location - walking distance to a number of different Metro Stations that get you anywhere in the city. Roma Norte is also a beautiful suburb with lots of fantastic food and small bars (one particular favourite that sold amazing Mezcal is called Mano Santo - it's on the same block. We also loved Restaurante Los Dorados de Durango - also on the same block). Check-in was super easy. We didn't meet Alex but dealt with Manu who was fantastic.

Apartment also contains guide books to Mexico city in both English and Spanish which we found very helpful, as well as a variety of different sized maps of the city and outlying areas.

Definitely recommend staying!