I could not recommend this apartment enough. As a solo traveler and young female in Madrid it was incredibly safe and fun. Everyone is so kind and spends a lot of time with each other - I did not expect to make so many friends. My room (#3) was gorgeous, even prettier than the pictures because of very high ceilings. The layout of the apartment is 4 rooms on the hallway I was on, with a bathroom, and then a shared room made up of 8 bunk beds which has its own bathroom, and then there is another one in the living room. The patio is in the center of the house and is so cute and nice. The kitchen is right when you open the front door. The area was great because, even though Centro isn’t always the favorite spot of madrileños, it felt like it was a 15 minute walk from everything - even Malasaña and Retiro. It’s right by La Latina (a few blocks over) which has a bunch of great restaurants, and the Anton Martin area as well. Definitely never felt unsafe on the streets nearby, even late at night alone. I couldn’t recommend this Airbnb enough! I’ve already booked dates to come back.