This stay was as authentic as it gets. You get the perfect experience of living in a middle-upper class neighborhood in Madrid.
The location is great and within walking distance to everything. The street also has nice restaurants/coffee shops. There’s also a carrefour market which is 1 minute away, and nearby public transport available. The AC is great and is a rare thing in Madrid .
Just keep in mind that the attic is tiny (as mentioned clearly in the listing). You can walk straight mainly but will find yourself bending sometimes to avoid hitting your head. I think it’s ideal for 1 person and maybe 2 max, even though 3 can technically sleep there.
Carmen was super nice and friendly. She was accommodating to some special requests and she was also flexible with check out time.