Cool! I have EQ4, and I would love to update it. Maybe eventually. There are always so many other things to come first!
I particularly like it for sizing quilts. It configures all of that when you adjust the borders, sashing, change the block size, etc. It's nice to be able to make images of quilts for clients or students, too. I dont' really use it for "making" the quilt, because I draft my own rotary cutting/piecing instructions - mostly for making pictures of the quilt and blocks and also for figuring how to make the sizes I want.
I didn't see the thread about activation restrictions for EQ6 - what's up with that?