The apartment is spacious and accessible down a few flights of steps from the front entrance. Though it feels like you're going underground, you are still actually above street level on the other side because of the landscape of the area. The space doesn't have a great amount of natural light especially in the inner rooms/living areas/kitchen. The second bathroom is a lot smaller than the main bathroom and the shower doesn't have a light above it so can be quite dark. The apartment can get quite warm but fans are provided. It would've been nice to be able to open the windows/doors at night however you'll get mosquitoes!
The location is fabulous and walking distance to the Royal Palace of Madrid and a lot of restaurants and the main food market. Ronny is a great host who was great with communication and helped us book a maxi cab to the airport.