@hshah – Currently no, but it is something we are looking at.
In the mean time you can register a custom condition pretty easily if you can follow examples:
– Filter to use and example of simple optionless conditions: https://github.com/JunglePlugins/Content-Control/blob/master/classes/Conditions.php#L382-L409
You can see that each just has a callback which is a PHP function that returns true or false.
So you make a custom condition that checks the user meta however you like and return true or false. Then register a new condition with that functions name as the callback.
Hope that helps.