The apartment was in tip top shape when we got there.
It is also located at a really nice place in Madrid, lots of opportunities to get to into public transportation as in Bus lines and Metro lines. Supermarket nearby, just like cafes and tobacco stores if someone needs one.
Overall I can only recommend using her apartment since its everything you want in Madrid if you look for a place to sleep and walk around the city during the day. I have stayed for 8 nights and I would most certainly go back to Marias apartment if i were to go to Madrid again with a party of 6 people.
Maria was very communicative whenever I had questions but she was not at the apartment herself which is also just what I was looking for since I was traveling with a group of 6 people.
You really do get great value by booking her apartment.
Also the connection to the Airport is nice, you live near a street where there is a lane committed to taxi and bus so you can get a taxi easily without any apps and travel to the airport terminals within 20-30 minutes. By metro it takes about an hour to get there.
To wrap this up, book her apartment, you wont regret it. 9/10 in my book and only reason this apartment is not 10/10 is due to the shower being a slight challenge to get to the right temperature lol other than that it was perfect all around