The flat is exactly as shown in the photos. It is a nice and light space with all the kitchen equipment you need for a few days. If indeed you wish to cook food at home as there are PLENTY of very good restaurants in close proximity. More about that later.
The bedroom faces away from the street, which means it is nice and quiet and reasonably cool. The building itself is what I presume to be a "typical" shared housing set-up in the city with a winding staircase winding all the way up to the rooftop terrace.
We didn't actually meet the host as the keys were in a key storage box outside the building. Communication was easy and prompt though, and the host got in touch a couple of days before our arrival to explain how everything works.
The area itself could not have been better. Compared to the city centre it is VERY quiet with lots of trees and some little green spaces around. Although the neighbourhood isn't hectic at all, there are loads and loads of bars, restaurants, cafes, and little shops around. If , like me, you are vegan, you won't have any trouble here. Condesa is also within walking distance with more restaurants and cafes to choose from there. Perhaps also worth mentioning is the fact that we felt very safe in the area.
In terms of getting places, Roma is also great. You have several metrobus stations in close proximity as well as tube stations. By taxi it only took us 30 minutes to and from the airport despite traffic.