I had a really great time in Zürich. Staying at Andreas and Ramona's home was really perfect. You can easily walk from their place to the (old) centre of the city, the lake, but also to the river to have a nice and relaxing swim. And also to the Uetliberg (approximately 1,5 hours to the top).
The room is spacious and clean and the bed very comfortable. Andreas and Ramona are very friendly and will help you with all questions and give good recommendations about what to do and see in Zürich. I would really like to go back in future and would recommend everyone to stay at Andreas and Ramona's place!