None of my friends use G+ but it has lots of active communities and there are many people who use it in a twitter-like manner -- posting non-personal items, starting discussions and the like that are crowd pullers (+1s, comments, resharing to other communities).

G+ is a good network, I hope the Facebookers will remain on Facebook and Google will find some way to open it up to outside web to integrate it with its active communities and the wide web - a prime example is the G+ blog comment system. It had potential to be the no 1, but they squandered away the opportunity by limiting it to G+ and Disqus scored there.