Our stay in Madrid at Miriam’s place was amazing. Central location that was on a quiet street but within a few minutes walk of the main sights and restaurants. She was very flexible with an early check-in. The apartment was clean, shower pressure great, and the balcony had a very pretty street view. The common area was pristine and convenient for storing leftovers. Best advice is to go to all of Miriam’s recommended spots! They weren’t in the travel books and were great spots for food. As noted you will be sharing the common space, so if you get unlucky with loud co-habitators you could potentially hear everything inside your room.