User Review
WP4J - Wordpress for Joomla
Room For Improvement In SEO
I have reviewed the demo site and it appears to function well outside of duplicate URL issues (slash or double slash in the url still delivers same content without a redirect). The bigger problem I see is the sales pitch. It doesn't seem clear enough as to why a customer would benefit from marrying WP and Joomla together rather than just using WP by itself.