Pedro was extremely generous: my flights was delayed and so we checked in a lot later than planned; he also came to fix the boiler after I pressed the wrong button. I occasionally use airbnb and in my experience Pedro has been the best host so far. I am really grateful to him for the hospitality.
Those who are familiar with Madrid know that the area is great; however it you want to be close to tourist attractions, you may want to find something around Plaza Mayor, that would not be my choice obviously. I always stay around A Martinez.