We love Alberto. He is such a hospitable host! We have been traveling and have not eaten and when we arrived he had snacks for us, juice for my daughters and wine for me :). In this trip we have stayed in total of 6 airbnb in Spain and he was the most kindest and spent some time showing us where to go, eat and a few tips here and there. His place is less than 5 mins walk to Plaza Major and less than 10 mins to Sol. This are some of the places to visit. Also, most tourist spots are about 30 minutes walk from his apartment so we hardly used the metro only to the airport. I would highly recommend you to stay with Alberto and his apartment