I am already spending more time on G+ because of the direction facebook is taking (I hate ad bombardments).
I just hope that G+ does not take the same path to ad slam city as facebook. Currently, I respect Google for having more tasteful, and restrained, ads.
Add fees to the equation, $1 just to send a message to someone to find out if I know them or not, and it looks more and more like G+ will become my new social networking home.
Now if G+ would just improve their messaging system, so that I can look up my message history, for example, I would be happier.