Sandra was a great host. She was at the flat when we arrived and gave us a full tour explaining various things relating to the flat and even provided a list of maps, recommended restaurants, and Madrid's main attractions. The apartment itself was very clean and was spacious enough to host myself and two others. The only drawback was location - if you want to be in the middle of everything and close to all the bars and restaurants in the city centre, maybe this place isn't for you. However, if you don't mind walking around 20-30 minutes to most attractions, then this may not be as big of an issue. Aside from this, Sandra was an excellent host and we enjoyed our stay in the city!