David's place was our home for a week in early January 2022 during a relative safe part of the pandemic, and it worked out very well for us. The location in Condesa is wonderful - quiet, tree-lined boulevards with great restaurants and cafés all around. (Veguisima, steps from our door, was particularly good for vegan options, the Green Corner for groceries, the French style café Lardo for coffee and meals.) We found the location especially convenient as it is just a few blocks away from Chapultepec park (with its many museums, etc. - we spent two half-days exploring the Anthropology Museum, which is among the best in the world).
The place itself is a little minimal - we had to ask for a few things (e.g., fan, coffee maker wasn't working) and the wifi was very spotty at first (perhaps not so unusual in Mexico), but David was always very responsive to our needs, even changing the wifi to make it work much better for the second part of our stay. His helpers, esp. Yasmin, were always there when needed, incl. to greet us, help carry luggage up the three sets of stairs, etc. We recommend this place and its gracious host; for the price we paid it was a great deal.