Nieves is a very nice, polite and hospitable person. She's helpful and sweet in everything. Her apartment is quite central, and you can reach the center of the city in about 15 min., with bus number 50 (last stop : SOL), bus n° 17 (Plaza Mayor) or Bus n° 15 (Ópera). The apartment is bright, clean and comfortable. If you take the double room, you have en suite bathroom. She gave us a lot of useful information about Madrid! She has a super sweet and playful dog and a lovely daughter. I would definitely recommend her apartment and I would probably stay with them again when I'd go back to Madrid. Thank you so much! :)