Both are great hosts and they are very friendly and helpful. They answered all of your questions and were open to help for further questions.
We had a great time at the flat. It was clean and tidy. Furthermore you have some little details which are not usual at airbnb, like sweets, fresh fruits, Marmelade, beer and a bottle of wine. Overall it was a great time and we felt comfortable and we would come back anytime again. The area around the flat was nice and quiet. Which we liked as the city is very crowdy due to the tourists. Nearby was a wonderful cafe "HeimCafe" which was amazing for breakfast which we deeply recommend.
To make it short we deeply recommend the hosts and the apartment!