Benito is very well educated, friendly, and organized. His place is conveniently located near a metro stop, and it is within walking distance to all the good restaurants and tourist sites.
The apartment is super clean and smells really good. Benito made sure that I felt at home and he would quickly respond to my questions even when he was out for business.
I had a great time in Madrid because of Benito and his airbnb, and I would certainly hope to return when I visit.