I don't normally leave reviews for WP plugins but felt compelled to here. I've been through the mill in terms of manual WP and PHPBB integrations over the past few years. Decided to try this plugin tonight on a new install to see how it would work. Have to say that it was completely seamless and a joy to install. As I said, I've been playing with this area for a few years, initially back when Joomla was popular. (I don't miss those days!)
There are lots of features to play around with and a large collection of ready built widgets. Some additional tweaking of the widgets wouldn't go amiss but hopefully this will come with future updates.
This should be a premium plugin because of the complexity -versus- ease of use balance achieved.