Katharina was at work when I arrived but she had arranged for someone to be present and let me in. The home is in a beautiful location, so many restaurants nearby with many things within walking distance.
The apartment is as shown, however it's actually bigger than it seems in the pictures. There's no ac but with the windows open, there was a cool breeze. The kitchen is fully accessible, however I only made use of the kettle and teas.
The floor's a bit squeaky so be aware of your nighttime walks. Because there's no ac and the windows must be open, the nighttime noises come in quite loud. I was there on a Fri and Sat night and there were many late night wanderers who were quite exuberant in their celebrations. I was able to ignore it but it may bother some.
Another thing to note is that the door to the apartment is not marked, so pay close attention which apartment is hers (i had an incident where I had to keep ringing the bell to find the right apartment). Theres also a lot of stairs, so be mindful of that. Overall i enjoyed the place and Katharina was quite nice.