Angel was extremely helpful from day one. I had to make a last-minute reservation for a friend of mine who's visiting Madrid, and Angel was accommodating and understanding, answering my messages almost immediately.
The apartment is exactly as it shows in the pictures: Small, yet cozy, comfortable, and fully-equipped.
The reviews do them justice, Yasmina and Angel are excellent hosts, and are highly recommended if you are visiting Madrid and looking for a quiet stay.