Natalia's AirBnB is a spacious flat just beside Gracia and very close to the main metro connections (5 min walk from yellow line and 10 min from green line). The rooms that she rents are 3, all facing the interior courtyard. I stayed in the double for a week and in a single for 10 more days, because I needed a longer stay.
The rooms are furnished with all the essentials and have just enough room for fitting the luggage of a 1 week stay. They all have a lock for when you leave home.
The common spaces are the living room, the balcony, and the kitchen. They are all complete with any comfort one can need, although there are of course limits that are accounted for in the very cheap price of the rent (the kitchen stuff is worn from usage for instance, but it's clean so it's fine).
The host, Natalia, is phenomenal. She is super nice and very welcoming, truly a treasure. She let me use all the spaces and I could come and go as I pleased. The stay has been extremely nice, especially thanks to her.
To her and, of course, thanks to the cat. She's super nice and cuddly and lovely and I had so much fun playing with her!
All in all: adorable stay, adorable host, adorable cat. What more can one desire?