This might be the best plugin in the world, but I'd never know, because I have no idea how to use it. The documentation is incredibly weak. Other sources of documentation I've found online have been woefully incomplete. For every problem I've had, I've seen umpteen unresolved support forum entries. The problems I'm having all stem from the facebook developers page, especially open graph, but after hours of getting nowhere, I'm just going to have to go back to using one of the unofficial plugins, that I can at least get to work.