Christiana's apartment was perfect, spotlessly clean, comfortable extra large bed, it was just like home.
We never got to meet Christiana but check in was super easy and we had no problems while there. It's also very quiet, I'm a light sleeper and there was no noise on the street below.
Neubau is a great area, only three metro stops to the centre with plenty of nice independent, locally owned cafes, restaurants and shops with a few minutes of the apartment.
I'd have no hesitation in recommending this apartment.