This apartment is lovely, with beautiful views of a lush interior garden and a good amount of light. The place is quiet and centrally located in Roma Norte; even though you're in the middle of one of the world's biggest cities, it doesn't sound like it. We loved being able to make breakfast and it was very convenient to have a grocery 2 blocks away from the apartment.
Cuauhtemoc is a kind host, who oriented us to the apartment and was flexible with our check-out and check-in. He was hospitable, but not intrusive.
My only caveat to other travelers: there's only one set of keys for the apartment. If you're traveling with a group and plan on splitting up during the day, make sure that you make plans for getting back into the place. Otherwise, this apartment is delightful, comfortable, and in an excellent location!