i booked this place for the views and the location. both did not disappoint.
the morning view from the kitchen toward the royal palace was stunning, and on the other side on the patio is right above gran villa. i'm pretty sure you can't beat that at any other location.
as for the location of the stay itself, it's a 1 min walk to the nearest metro station, 8 min walk to cholcolateria san gines, 10 min walk to Plaza Mayor/Puerta Del Sol/San Miguel Market, 20 min to royal palace, and as mentioned above, right on gran villa, which is kind of like the times square of Madrid.
for sleeping space, my family and i had 2 full beds and 2 couches. it was fine for us but mentioning that if it matters for any one reading this review. also, one of the rooms doesn't have a door.
Pablo was a great host, and was super responsive/helpful.
overall, if it is your first time in Madrid, i think Pablo's airbnb is a good choice with stunning views in a central location