I am a film director and producer and I have stayed in many ABNBs, so I think I can write this with good perspective.
This apartment is in a super location. The neighborhood is just gorgeous, the architecture stylish. The apartment is light and bright with large windows and high up *(5th floor). It's basically a studio with a compact kitchen, but it was certainly adequate for my needs. I highly recommend it for a Madrid stay. And I'd stay there again.
Now there were a couple of issues. The host kept putting off sending me the directions in time. Then, there is the self check-in business. Ifound it confusing. There's a video of how the apartment door lock works, but it was in Spanish and I thought it was the outer lock.
When I saw the instructions and video it was panic time. But then the host sent Ines, this lovely young woman to meet me and show me how things work. Ines was standing outside waiting for me! What a gem she is! She removed all the hassle of the check-in.