One comment.. the Country midi audio demos seems a little lack-luster, rather plain and understated. Still I am glad to have some more styles and grooves to adapt.
I think that, that is the dilemma for any EZkeys library. If you get some really heavy playing with a lot of frills and licks, you end up limiting what it can be used for if you dissect the individual measures out of the grooves.
I was really campaigning for a product like this before it was released thinking it would be a breeze to come up with grooves that would work for anything. Now that it's here, I realize that it's a lot of work to manipulate and massage the grooves into a song that is basically finished with the exception of the piano bits.
But, it can be done to a satisfactory level. That is, at least good enough to convey your thoughts and give a vision of where you want to be when you get a real live keyboardist to add their ideas.
EDIT: I've since listened to the demos. I would say that the simplicity and understated demos would be an accurate representation of the collection and probably why I like it so much.