This is a great extension, one of the best joomla based event registrations out there. Lots of versatility and configuration options.
To take it over the top please add the ability to assign seats with tickets sales. I've seen a few other apps out there so I know it could be done. Maybe add it as a paid plug in - I'd be the first to pay extra!
I've had lots of people ask for this and having to look at alternate solutions while remaining hopeful it'll happen here!