Kash,
Very glad to hear that! We worked really hard to make sure that all the changes in v5.1 caused as little headaches as possible. There have been a few hiccups. Most users have had a very smooth process, and I'm glad to hear you're one of them.
Should you need anything else, just let us know.
Finally, if you haven't already, please consider leaving a rating and review for JFBConnect, or our support, on the Joomla Extension Directory. It certainly isn't required, but is very appreciated:
extensions.joomla.org/extensions/social-...ook-integration/7215
Thanks,
Alex