Nina is a care-taking person who was there for me during my whole stay. She is quite fair and flexible if you have any problems or questions. I felt at home in the apartment and I knew that she will always listen to me, when I need some help. To help me getting to know other people she even organized a contact to other Airbnb residents in Madrid which helps a lot if you are a bit shy. I can totally recommend this place and the host. If I will come back to Madrid, I will check first her place to stay again.