I enjoyed staying at Ale's place for a month. It is very spacious and in a central location by Reforma. Ale was very responsive to all my request and questions. Mr Roberto was always helpful and even offered to keep my luggage when I had to go out for a few days.
The only reason I am giving a lower rating for the location is not because of the location itself but a large construction going on in the front. I was ok for the first few days but sometimes they started drilling into concrete at 6 am and continued work past midnight. If you are deep sleeper it would be just fine, if you are light sleeper, weekends may be a little bothersome.
Having said that the apartment is huge, has it private terrace with outdoor furniture, large walk-in closets, huge bathrooms and so forth. Very walkable to many restaurants and other places of interest, including beautiful Chapultapec. Overall I enjoyed my time there.