The guys were very welcoming and lovely and made us feel at home immediately. They even arranged some space in the kitchen for our things to store.
The apartment was exactly as described, very modern and clean. The bedroom is a decent size with an en suite bathroom. The flat is located in a nice neighbouhood with supermarkets and a few lovely restaurants nearby. The metro is about 10 minutes walking distance and only takes approximately 25 minutes to the city centre.

I would definitely come back to live with them if I went to Madrid again.