I've used a LOT of plug and play social sharing plugins in the past. This one is my new default. I've gone from 1-click Share/Retweet, to Digg Digg, to Flare. The only real feature it's lacking is easy to add share features to insert via shortcodes or PHP snippets. That's not a deal breaker though, because it's an easy enough thing to figure out on your own.