Beatriz is a wonderful and friendly host. She helped where she could and checked often if we needed anything.
The room and private bathroom is all you need for a short stay in Madrid. It was clean and comfortable, she just bought a new mattress too so that was a big plus.
It's a really safe area close to the Delicias metro station, which will bring you anywhere in the city; very convenient for sight seeing. The building itself has also very good security and it's own pool (which we definitely needed in August).
10/10 would stay again!