Not really, no. Most people post a couple of times and get few reactions beyond one-liners, if that. Over time, fewer and fewer people who aren't Google employees (1) bother posting anymore. Picture posts get by far the most +1s and shares. Completely incomparable to the text-based discussion networks.

(1) As well as anyone promoting a business, I should add. I've seen a couple of writers and lots of professional photographers using G+ for self-promotion. That seems to work quite well for them, especially the photographers given how image-heavy G+ is.

Maybe, most of us aren't involved in it. Since day one I never found g+ to be an accessible place to converse with people I know or people who share interests.

I am sure there are some great posts going around limited circles of people, just that is not the common experience.

There's plenty of discussion despite Google sabotaging it with every other update. :-/