We stayed for three nights at Juliana's place which is located right at the center of Madrid where every thing takes place. Main places are within a walking distance. Whether you like to just visit or party, it's just the place to be!
Juliana was a fantastic host: to begin with, she was flexible for check-in and check-out trying to help us the best. She warmly welcomed us and gave us many tips to enjoy the most our stay in Madrid (e.g. great flamenco show experience). Juliana is actually adorable and the best host you may expect.
Many thanks again, Juliana!