My husband and I really enjoyed our one-month stay at Carla's AirBnB:
Location - in my opinion, amazing. The apartment is within a 15 minute walk of everything you could ever need: coffee shop, park, Walmart, street vendors, market on Thursday and plenty of restaurants. Several times, we walked about 30 minutes to a Thai restaurant in Condesa and to the Tuesday market. We went to Roma Norte for an AirBnB experience and it only took a short Uber ride to get there.
Apartment - an older apartment in an older building, but it was comfortable and had plenty of charm. We used the kitchen every day to, at least, make breakfast and the dishware and cookware were of really impressive quality! The water was HOT, which made for some really good showers. She also had a bunch of cute little plants to breathe life into the space. She also provided a really good drying rack for the clothes.
Communication - Also amazing. Carla wasn't even in the country and she was still very responsive. She was even accommodating regarding my method of communication when I told her I had no experience with a common communication app. She, and her team, went out of their way to ensure we felt welcomed.
The only thing I wasn't used to was the structure of the building. Some of the windows literally faced the windows of the neighbors, which I thought could cause a privacy issue. However, I really enjoy natural air and light, so we usually kept most of the windows wide open and just hoped everyone else was minding their business just like we were minding ours. The structure of the building is out of Carla's control, so I wouldn't consider that to be a negative in the grand scheme of things.
The other word of caution is that the washing machine takes a long time to fill up and can take a long time to complete a cycle. However, after figuring that out on the first day of using it, we simply built that into our plans and it wasn't a huge deal for us.
Overall, we really enjoyed our time at Carla's home and would re-book in a heartbeat.