How much you enjoy this place will depend greatly on your affinity for being in the middle of it all. This apartment is in the middle of old town Zürich. This means that it is lively and near a bunch of shops and landmarks. Unfortunately that means that you won’t be able to go to sleep till late and you will be waking up early if you are averse to noise. However if you can handle that then you will love it.
It is a five minute walk to the train station and grocery store and many trams and buses as well. Restaurants, too, though you will pay out the nose for mediocre food. The host is very generous with extras. There is cable TV. The interior is very fancy. I won’t spoil it for you but you’ll love it if your own home is simple!
Related to your satisfaction depending on your affinity for the nightlife, There are many stores nearby which will attract crowds of young people. How you feel about these crowds and their rowdiness will affect your enjoyment of this apartment, but they do eventually go to bed… I think.