I think it has bright future and may replace the SERP soon. There is much fuss that it has negative effects upon ranking but i don't think so.
Google Plus is not social network. Its social layer. The concept of social layer is to share content socially and interact with social visitor.
i am seeing that in future google+ will be able to occupy the first position among all social media network because some really exciting features have been introduced.
Yes Google+ has a bright future.it is the best thing to join to Google+ it is also same as the Facebook.
I thing Google+ will have a bright feature in future because it also getting more users day by day so i thing it can lead Facebook in few years.
IMO there is one problem. People have to join G+ and leave Facebook. When it won't happen, well... Good luck, Google!
Google plus can be be confusing from the beginning, like anything i guess. But once you start using it i think you will find its featured very usefull indeed,
I've never been a fan of any Google social network, they'd be better off buying a good up-and-coming one and keep the same dev team that they bought it with.