I have just set up my google+ account and I think that they offer good services. What I like most is the use of circle of friends. I must agree that you would not want everyone to see updates so choosing which ones receive the updates would make sense the most. Though I have some doubts with how this new social network will stand against Facebook, and I know that the comparison would be inevitable. I would have to say that google+ is leaning more toward a sustainable cycle with the incorporation of other google services.