My husband and I stayed in this Zürich studio for 4 nights. The location of the apartment is great, right in the Old Town area and really close to great shops, bars and restaurants. The apartment is stylish, but we did experience some issues.
The space is very small - and it seemed to me a bit smaller than it appears in the photos. As a single person, it would be great, but with my husband being over 6ft, the space felt cramped for us both. The building feels like it is made up more of "crash pads" than places where people live, but this maybe just my impression. The building is very noisy and both me and my husband - who normally sleeps very soundly - were woken up by people apparently leaving for work in the morning. The noise travels very easily. Also, the room is really hot and if you open the window, it's noisy outside. All of this makes it difficult to sleep well.
However, check-in was incredibly easy and our messages were responded to very quickly. The location really is fantastic. And if you do get chance, go to Swiss Chuchi for fondue - it was amazing and is just around the corner!!