The location was perfect! A short 2-3 min walk to Puerta del Sol, 2 min to Teatro Real, 5 min walk to Plaza de Oriente (gardens just beside the Royal Palace), ~7 min walk to the Royal Palace, and 4 min to Plaza Mayor/Mercado de San Miguel. The Opera and Puerta del Sol metro stations are very close (same distance walk as noted previously). There is also an El Corte Ingles (department store) just around the corner, in case you need/forgot anything. I am focusing my review mostly on location, as that was THE most important thing to us when looking for a flat. The actual apartment is excellent also. Although small, the accommodations were very comfortable and three of us (2 adults and a teenager) fit well (any more than that would likely feel cramped) with the 1 bathroom/shower. The apartment was very clean and Jose Maria was extremely nice and helpful. upon our arrival he spent time with us showing us excellent places to see/visit on a map he provided. We had been to Madrid before so he pointed out places to us that were less touristy and more local, which is what we were looking for during this visit. Jose Maria was very helpful and attentive during our stay (brought us extra blankets promptly when we needed), but also was not intrusive (which we also appreciated). Overall, I give Jose Maria and his apartment a very strong recommendation and believe that if you are looking for a comfortable space in a GREAT location, you will be extremely happy you stayed with Jose Maria!