We started using the plugin around 2 days ago, it seems to push stories "sharing posts" successfully,
it does not however push comments in realtime or pull comments. there was only one incident in the log of it trying to push a comment
2 Pushing comments 14341 178223 Error returned from FB(#100) Error finding the requested story Wed, 14 Sep 11 11:46:16 +0000
Although that error is most likely due to the fact that I edited that story's submission time an therefore it could be expected for it to change the story id.