Good plugin; lightweight, doesn't mess up your page speed scores. The Facebook Send option is pretty slick -- much better than other plugins.
I couldn't get the Google+ button to show up, and I couldn't get the e-mail option to work. I'd also like a sharing plugin that doesn't take the user out of the website. The Facebook share is slick, but the others don't open in a new window; they take the users off the site. I'm sure I could go into the code and change it, if the API allows for it.
But this looks promising!