Maria is a really nice and friendly host, she kept on making sure that everything was fine with us. She agreed to leave the keys at the receptionist, so we didn't have to worry about our late check-in. The place itself surely isn't central Madrid, but there's a metro station relatively close, which can get you to the center in a bit over 30 minutes. We went out to explore the city in the mornings and came back in the evening, so we barely even noticed the distance. There's also a mall nearby if you need anything. The place had all we needed and perhaps even more (we came in late November, so the pool was closed and we didn't really use the balconies either).