The best thing about staying with Claudia is the location. Her apartment is within seven minutes walk to three METRO stations; lista, diego de leon and manuel bacerra, covering lines 2, 4, 5, 6 so you can easily get to any part of city very quickly. On map, lista looks closer but actually leon is. Coming from airport, lista is more convenient [especially with luggage] even though a little further since fewer steps. There is a SUPER SOL grocery store on CALLE DE JOSE ORTEGA Y GASSET only 5 minute walk. Claudia is very friendly and helpful. My flight was 9 hours late so I arrived at midnight and she was most cooperative about that. She responds very promptly to messages. She is not proficient in English but with translation software on her phone, can communicate adequately. I would definitely stay with her again. Bathroom is tiny but clean. Madrid apartments do not have central air or heat so it can get cold in winter but Claudia gave enough blankets to sleep comfortably. The room she rents has lots of storage shelves as shown in photo and a twin mattress.