Tania's apartment has many advantages.
The position was great for me, since I could walk to the opera house. Also, it's a nice part of town with some historic half-timber houses and a lovely millstream at the back of the house. The botanical gardens and some nice parks and villas are nearby.
There is a comfortable bed (if you like them on the softer side, which I do), sufficient bedding, bedlinen, and towels.
The kitchen is equipped, but mind that there isn't even salt, sugar or oil. You have to buy everything. Also, there are hardly any glasses, and I had to use a coffee cup for my toothbrush ;-) There is a Nespresso machine, which I don't like because of the company and the waste it produces, so I brought my own Italian caffettiera.
All furniture and fixtures aren't new or fancy, but functional, and I felt comfortable in the apartment.
The WiFi worked well most of the time.
The building is probably from the 1950, and sound-proofing wasn't a big topic at the time. You hear some noise from the neighbours and the staircase, but that didn't disturb me much.
All in all, I had a good time in Tania's apartment.
Communication with Tania worked fairly well, but I didn't meet her. She provided a garbage bag (Züri-Sack), and a city map.