My husband and I really enjoyed staying at Salvador's place. It was clean and comfortable and has lots of style. We especially loved the fact that it has a couple of balconies where you can open the doors and look or sit outside. We stayed five nights before and after Mexican Independence Day and couldn't have asked for a better experience. The neighborhood is very walkable and safe, and it's easy to get to Condesa and other places from there.
Salvador was very attentive and responded to messages quickly. He also checked in on us after we arrived to make sure we were doing ok. The older man who works in the building and helped us into the building is very sweet and also very attentive.
The only thing I would recommend is bringing earplugs if you're sensitive to noise, just in case. The noise didn't bother me because I love hearing the vendors in the morning yelling out what they're selling. But there were a couple of workers working on the sidewalk nearby during the time we stayed there. I viewed it as a good alarm clark, so it didn't bother me. My husband wore his earplugs so he slept through it on one of the mornings he wanted to sleep in. Again, this was not a huge deal.
Bottom line, my husband and I would definitely stay here again. We love Mexico City, so we definitely plan to return.