Everything was as expected, great location and perfect for resting after an exhausting day of walking and sightseeing in Madrid. I stayed during the weekdays, so there was not a lot of noise coming from the street. The hostel is near a pharmacy, convenience store and many restaurants (including a McDonald's that is open until 2am) so you can get anything you need without having to walk to much.
I didn't meet Esteban, but Javier was there and was really helpful during my stay.
Note: I was traveling solo, so it wasn't a big deal for me that the bathroom door couldn't be locked. However it's something I think you should know.