I have stayed at Jose Victor's place for over 21 day due to work at Madrid and it was a delight to stay there. Initially it was for a few days but the company needed my services for more and I found no hesitation what so ever booking again the additional days through AirBnB.
Both Victor and Darling were very welcoming and always tried their best in helping me out when I needed. They even invited me to join their dinners on many occasions after a long day at work. And we also shared a few beers over a game of Metal Slug on his gaming consoles.
The place is very interesting and welcoming. Victor in a big fan of IT and gaming and the place really shows. Infact he almost owns all types of gaming consoles which have been released through out the years from the Retro scene Nintendo 64 to most updated PlayStation 4. He also let me have a go at his VR head set and it was a blast.
The neighborhood is very safe both in the daylight and at night, I normally walked or cycled my bike to get to places, even at 1am after a late shift. There a few buses you can ride a few corners away and there is a metro line just 7mins of walking.
I do not understand Spanish and their English was basic but this did not stop them from trying their upmost to communicate with me and the overall experience was good. I also learned some Spanish myself and they improved their English.
If in the near future I will be travelling to Madrid this would be my first stop to check for availability.