I started using Google+ recently. The main reason was because I heard that it may help your blog come up in Google searches. Other than having my posts published automatically to my Google+ page, I don't really use it.
It appears that Google+ will grab some of your pictures from your blog posts and automatically back them up for you.
I received an email today showing me one of the pictures that they saved on my behalf...
I think they may have been missing something... LIKE THE BOTTOM HALF OF THE PICTURE!! Thanks, but NO THANKS Google+! I am not a legless woman!