I have ver 5 and really don't use it to its max. I do like it for example to take a pattern for a lap size and enlarge it to a queen/king and then print out the fabric needed.....better than guessing, especially now that fab is so costly.
I don't "design" quilts so that is not a priority for me......I was going to upgrade, but decided what I use it for what I have right now is enough.