Petra's guest apartment was just as described and exceeded our expectations in terms of all of the small amenities and details that were made available. For example, we were lamenting that we forgot to buy/bring a Zurich city guide with us on the trip and were so grateful to find Monocle's city guide, a Wallpaper city guide, and Lost In's city guide all on the shelf for us to borrow. Petra and Simon's own recommendations for places to visit in Zurich were spot on as well. The refrigerator was even stocked with 1L of milk which was a lifesaver when we realized we had woken up realizing we forgot to buy it for our one year old the night before. The apartment could have just as easily worked for a family of six and the location, while not in immediate proximity to the city center, is easily accessible by the suburban train line and the tram system. We wouldn't hesitate to stay with Petra and Simon again or to recommend their guest apartment to friends.