I think the way Google+ worked was the nicest between social networks. Remember the circles? We would add every friend or person in a circle and we could choose what to share with each circle.
Sometimes some people were included in various circles and we could choose to share stuff with various people based on what information or material we wanted to share. That was nice. It was a replica of what we actually have in real life regarding our friendships.
I think social networks and microblogging services often try hard to give us a real-life experience and Google+ was the nearest we had ever.
But it was a social network after all and it was operating under Google so it was a nightmare regarding privacy and user rights, I still wouldn’t use it but the concept was very nice. If I had to use a social network, and there was a Google+-ish option, I would definitely choose it.