This is a contactless entry with Airbnb; I never met Loredana or the co-host Nelson. But there was a person near the apt who let me in, his name was Ramon who lives around the corner. I arrived on a Sunday (late July) afternoon from Lisbon, Portugal and took the "Express Bus" from the airport as Nelson had instructed, instead of the taking the metro (sub-way) to the city-center. Which was much easier and the bus stop is just outside terminal 2 from which I arrived and this bus picks up at all the terminals (4,3,2,1) for a flat fee of €5.00 to the city-center and I got off at stop: Cibeles. This bus only has a hand full of stops direct from the airport, just wait for the monitor inside the bus that will tell you as you are arriving to your stop and get off. Once at Cibeles it's about a block and half walk to the front door of the building.
This unit is perfect for one or two-people; it is a studio style but more than enough room for me, since I'm only one person. The A/C was ice cold and I had to turn it off during periods when I was sleeping at night, because it works very well, during these summer heat-waves Madrid has been experiencing.
Lighting fast high-speed internet is available to connect multiple devices with no problem and there is a Super-Mercado four (4) doors down for morning coffee, espresso, water and bakery with which to supply your frig while you enjoy your stay here. This Apt is walking distance to all the attractions and the nearest Metro station was (Gran Via). I would highly recommend this unit and would definitely return on my next visit (5-Stars all the way) to Madrid. Thank you Nelson for your easy communication with the Airbnb app.