The apartment is a wonderful place to stay in DF. It's beautifully designed, and the light and space are lovely to wake up to and come home to. It is clean and comfortable -- Mexico City nights can be chilly, so I appreciated that there were extra comforters for the bed. I slept very well.
The location is great, too. I walked easily all over Roma and Condesa, and because I was on holiday and had time, I also walked to el Cento and to Chapultepec. The best restaurants in the city are nearby, and there are lots of very good places to eat, drink, and art galleries within walking distance.
Salvador checked me in. He was warm, helpful, and made it clear he was available if I needed to get in contact. The porter in the building is also very kind.
In short, this a great place to stay, and I hope to come back.