Hi,
It depends on how you spend your time. We chose to live near the city because we wanted to be able to go out 'till late in the night without worrying about finding our way home. We just walk home when we're done. Even if we decide to take a taxi, it's not too much. Of course there are now night buses and trains that go about once every hour on friday and saturday nights after midnight, but we still like our freedom of choice. It's nice to be able to decide for a movie 15mins before it starts and still make it.
This was one of our main priorities when we picked our apartment which is a 10min walk to the Hbf. I've worked in Oerlikon, Schwerzenbach (near the Greifensee) and now Seefeld. It's nice to be central.
~ N