The apartment wasn't bad but it wasn't great either - really just minor details that could've further elevated our experience such as a working toaster (we bought bread only to realize that the toaster wasn't working), salt & pepper, sufficient toilet paper (only one full roll and two 3/4 ones were provided for the 6 of us who were staying there for 5D4N), WiFi that works in the entire place (read that other guest reviewed it before but nothing effective was done besides leaving the WiFi router hanging out from the fuse box ), actual photos (the ones behind the frames came from Ikea with its names and dimensions still there), and clean shower curtains (read that someone else mentioned it too).
Although the apartment is listed as one that accommodates 6 people, it is truthfully more comfortable if there are 4 guests instead. With luggages in the way and the sofa bed opened up, it makes it too cramped for 6 people to be in the living area. And the dining area only has 4 chairs anyway.
However, considering how expensive Zürich is, this Airbnb is definitely worth it with a supermarket and bus stop not too far away.
Again, this Airbnb is a great choice for 4 guests and would be even greater if the owner paid attention to minor details. But from my experience, this usually is the case with owners paying companies to manage their Airbnb's condition and its listing.