As much as I like the idea of only having to post something in one place to have it shared with people I think part of the reason I really like Google+ is because all of the content that is being shared there is original. Buzz was all about integrating your other feeds. G+ is doing very well by making people post original items.
I am wary of bots after Wave. The vibe of a conversation went downhill really quick.<p>I question too the utility of duplicating your posts twice. It's really hard to get it right without multiple overlapping groups of people seeing the same content twice. Plus the resulting fragmentation of discussion as well.
Not having any luck using AgentG in a circle to share, it always has to be shared directly with AgentG. i know there is a note about this during setup, but it seems to encourage you to add AgentG to a circle for regular use. This doesn't seem to work.