My sister and I stayed at Pau's place on the tail end of our Mexico trip, and it was awesome! Pau was so accommodating and thoughtful - she was able to let us drop off our bags early, and she left us fresh fruit, metro passes and tons of tips. She took the time to sit down with us and show us a map of all the great neighbourhood spots and gave us some good advice for our last few days in Mexico City. Among other things, we ended our trip with her recommendation of some churros from El Moro!
The apartment is super cosy and beautiful, and we found it very quiet - we were there on New Year's Eve, and aside from the expected fireworks at midnight, you wouldn't have known it was a holiday. It's less than 10 minutes to walk to the Centro Médico metro station, and in general the neighbourhood is great and quite walkable. Very close to cool Condesa, but we appreciated that things were a little less expensive in Roma.
I would not hesitate to stay here again, or to recommend it to anyone visiting Mexico City. I hope to stay in touch with Paula!