7.0 was a MAJOR rewrite of the base code, combining 2 products and fixing all issues that plagued them both; not all features made the initial cut due to time constraints but will make it back in the base code (as you can see we've added a lot more features in every major revision); I encourage you to stay on board...
If you've set your mind on leaving, there are several users who can give you advice on items you can do with you ubb license when it's no longer in use.
