Nice apartment, great amount of space for 4 people. Not very central but is a 5 minute walk from the underground and there is a bus stop right outside. Well equipped kitchen and a very comfy sofa in the living room. Had a few issues with the electricity (fuse tripped about 5+ times), however was easy enough to fix. Host seemed nice but was unresponsive when we had the above issue. All in all, we enjoyed Madrid and the apartment.