Here is the original review of a basic/Standard KETRON EVENT from a customer in the UK:- https://www.youtube.com/watch?v=irgVe2wz9fY&t=1782s


Here is the same person's review after he installed the Pro1 package 2 weeks later to fix these issues he cited with his EVENT ...and further enhance his keyboard:- https://www.youtube.com/watch?v=li0TyCFDcgc&t=3611s

What do you think?

This sums up why you would want to get the Pro1 package for your EVENT.