Dani's apartment is centrally located in a quiet corner of a very lively neighborhood (a very short walking distance to Gran Via metro station). Although we never had a chance to meet him in person, he managed to be unbelievably helpful and accommodating since the beginning of our trip. He gave us all the information we needed before our arrival, including precise directions to his apartment, wifi password, etc. and made sure his friend was there to let us in. He also left us plenty of food and coffee for breakfast, even some Cava for my husband's birthday. His place is very clean, practical and charming. I would 100% recommend it to everyone planning a trip to Madrid.