Cristina is a kind and considerate host with very good knowledge of English, Spanish and German. She has a lovely little boy who is very chilled out and charming; he is no problem at all, in fact he will make you want to have children of your own, if you don't have them already! They usually came into the shared area of the flat for some food late morning but other than that we didn't really see them. There was a good friendly cafe nearby if you wanted to have breakfast out but we often had breakfast at Cristina's family sized table. We have a boy of 13yrs and found it relaxing occasionally to watch some netflix for a while with him before going to bed, which Cristina didn't mind. We are grateful to her as well for washing some of his clothes when his favourite T shirt became dirty. The apartment was immaculately clean. Kreuzeberg is a great area in which to stay, it is an attractive, leafy part of the city, centrally placed. We hired cheap bikes for the week from 'rent a bike 44' near the airfield and were impressed by the way Berlin was set up for cyclists. We definitely would return.