1. InstallationIt was a pretty straightforward install for me on Chrome. I just went to the site and clicked the “Add to Chrome” button (you can also get it from the Chrome Web Store).
When turned on, you will see options for Google+, Twitter, and Facebook above your stream. You will have to enable the functionality for Twitter and Facebook by checking each box.
When checked, you will be redirected to a page to confirm access of the application, and log-in to the respective network (you may need to temporarily disable pop-ups). After access is granted, you will be returned to your Google+ page.
And that should do it. You should be ready to use the extension.
2. SharingAfter the install I tried out sharing. Below the share box in Google+, you will now see options to share to Facebook & Twitter.
Clicking the G++ Share button will share to Facebook and/or Twitter, while you still use the standard process for sharing in Google+. After the share I checked out all three streams and found my updates, as seen below.
Finally, I tried sharing media as in videos and photos through G++ but that didn’t work either, which makes sense as they all handle media differently, but a good thing to know.
Overall, it does a good job at sharing links and short updates across all three platforms, but be aware of character limits and sharing media.