I have just started to use jFusion, so my experience with it is limited yet. But so far it is working well. I am using it to keep my phpbb and joomla users in sync. I found the setup task a bit difficult, but reasonable for a beginner like me. If things don't go right with the initial setup, it can be difficult to find instructions because the ones provided on the website are limited, and not completely up to date with the latest version of the software. Though they are still enough to get you trough. I did run into a problem I didn't know how to solve, so used their support system which was excellent. I got a very prompt reply and was able to resolve the issue. So I am very happy. It's nice to see their dedication to support.