Maria Beatrice is a very nice and kind person who is traveling a lot and has some stories to share. I've seen her just for 1 day of my 9 days stay. She was always available in Whatsapp though for any questions/requests. She also knows nice places around.
She has 4 big rooms with kitchen, bathroom and all equipment. Laundry included :) I've been living in her room which is very nice and has great style.
Cats are very nice and friendly as well but as Maria and her flatmate weren't at home most of the time, we usually had to clean toilets and some stuff after the cats and feed them.
Location is just amazing. It's like 5 mins of walking from Plaza Major and 7-10 mins from Sol. I loved the area around as it's safe and clean and pretty fun at night (a lot of cafes and bars near the house).
Thanks for the room, Maria! It was a nice stay in Madrid in such a great flat.