Out of all the plugs in I've tried, this one fell just one important step short of being perfect.
It's easy to install and has a super easy set up interface. In fact, everything about it was looking perfect... EXCEPT.... there is no Facebook like button if you aren't hosted by wordpress.com.
That's a shame since FB is such an ingrained part of the social networking system... oh well. Unless someone gives me a workaround solution (and I tried adding a special icon, but it won't give me the FB logo, just that y shaped share logo), I'm back to shopping.