We stayed at Nicolas place for more than a week and had a nice experience.
The apartment is exactly like it shows in the pictures and it is really comfortable. The location is really good, in a nice spot in La Condesa, near lovely squares and it allows you to do a lot of things by walking. There are good restaurants, cafes and markets around and there is also a metro station nearby to go further.
Gerardo and Cesar, who welcomed us, are very kind and they make everything they can to assist you during your stay.
We definitely recommend the apartment.