I recommend this place for others.
1. Location is pretty good. You can take walk to city centre in 10-15 min. or jump on bikes and be in centre in 5min.
2. Apartment and common space was clean and looked fresh.
3. Carlos was really helpful and answered to all our questions, thank you for that! :)
4. Neighborhood has some nice cafes and restaurants (where locals eat) so you can feel a local vibe there. In weekend in turns a bit like party place for locals but we felt really safe and from our apartment we did not hear any big noise.

So in general this apartment is great for stay for 2 people if you come to explore city and do a bit of work with your computer at apartment (wifi was in good quality) .
And Madrid is such a beautiful place!