Pedro's flat is perfectly located, walking distance to Atocha and Delicias stations (Renfe and Metro), also close to Museo de la Reina Sofia.
The flat is in an old and classic building, which is quite charming. The rooms are cozy, and there are 2 separate rooms (with double bed) and living room with sofa bed. My friend and I could spend private time in each room, which was very nice. There are lots of supermarkets around, so we could cook light meal using the kitchen. Pedro is very quick with any questions and inquiries, and very helpful. I will definitely come back to his place when I come to Madrid again.