My husband and I had a wonderful stay at Kerstin's penthouse. The layout is open plan and very comfortable. The space is roomy where necessary - kitchen, living room, and bathroom. The location was great for us as we love this neighbourhood... so many supermarkets, shops, restaurants, etc.
We are quite independent travelers and usually require little interaction from our hosts. Kerstin makes it easy for her guests by providing sheets of information that provide answers to most questions. However, when we had a question not on the sheet, she was very quick to respond and helpful and personable.
Like any host who opens their home to guests, Kerstin expects her things to be looked after with care. And she requires a copy of identification from her guests. I understand this precaution as this apartment was a great place to stay. We would stay here again!