Manuel is the nicest, most hospitable Airbnb host I've ever stayed with. He personally met us at his house, showed us every aspect of it, showed us on a map different places to go nearby (groceries, restaurants, bars, etc) and was even available by text to help us out - such as finding a mobile massage provider.
The space is very spacious, clean, well-equipped and comfortable. We especially appreciated the Nespresso (I'm totally buying one when I get home) and the washer + dryer combo to be able to do laundry.
While we mostly took taxis and ubers, the unit is very centrally located to get to the metro or other public transport options. And everything else you need is within a short walking distance. Highly recommend if you're staying in Madrid.
(This building is also accessible - there is an elevator for anyone with disabilities - that was a big consideration for us since I'm traveling with my elderly mother who can't do a lot of stairs)