I stayed in Mo's place for three months. The apartment has all necessary accommodations for such a long stay - washer and dryer, fridge, cookware, closet space. The location is really great, with small grocery stores nearby as well as cute cafes and shops. Mo was extremely easy to communicate with.
Maybe this is a personal note, but I only felt slightly uncomfortable during my stay because Mo's place is really very nice - the apartment is new looking, with polished cabinets and wooden floors. We used the kitchen very much and almost always felt concerned / stressed about ruining the wooden floors that cover the entirety of the apartment (minus the bathroom of course). Mo asked we always remove our shoes while in the apartment, but I wonder if there is need for even more precautions in such a nice apartment.
In any case, it was a great stay - couldn't have found a better place to call home a summer in Zürich.