EQ6 and 7 are MUCH better than 5. The whole interface was changed for 6.
I use EQ7 all the time and am still learning new things it can do. I agree with the others that there are limitations, but I do not have the patience to draw on graph paper. I love being able to flip a block instantly when creating a quilt layout, or insert a new border between two existing ones. I love being able to experiment with different colors and instantly see what the change does to a quilt. I think you would get your money's worth, and then some.