Probably the best Airbnb I've ever stayed in. Ignacio's place is perfectly located in the center of Madrid, just a few blocks away from La Gran Via - Madrid's main street. There's a metro station right outside! The Royal Palace is just a few feet to the left, with Plaza Sol and Plaza Mayor also within a very short walking distance.
Equipped with modern utilities, the place was also stocked with essentials, including basic cooking ingredients, towels, tea, and more. These tiny details made a huge difference.
I felt right at home the entire time. This is a perfect place to stay for a solo traveler or couple.
The only thing to be aware of, as other reviewers have mentioned, is the long flight of stairs. There's no elevator, so just know that you'll have to climb 6 or 7 flights of stairs every time.
But otherwise, I had an incredible stay. Highly recommend.