Javier's studio is perfect for one person, or two if you don't mind a bit of closeness! It is very conveniently located, five minutes on foot from Atocha train and metro station, and just across the street from the Reina Sofia museum. It is also very close to some great restaurants and bars, and there are lots of shops (pharmacies, grocery stores, convenience stores) nearby. Javier is an amazing host. He sent me a list of restaurants, and the ones I had time to try were outstanding. The studio is new and sparkling clean, and although the neighbourhood is pretty lively, the double-glazed windows block out almost all sound. One thing to note: this is ideal for someone who is looking for a comfortable and affordable base to explore Madrid. It would be possible to cook an elaborate meal here but it's probably more enjoyable to eat in any one of the many great places in the area; there is no washing machine, so if you are planning to stay for a long time you need to locate the nearest laundromat. For my purposes, it was absolutely perfect.