I have it and I love it - I design dozens and dozens of quilts on it. Some I make, some are just ideas - doodles, copies of things I saw and wanted to work out how it was laid out, quilts based on photos I've taken of various things (hotel fabrics are great for quilt inspirations - often very graphic)... I really enjoy the design/drawing aspect of quilt making and it lets me play with all SORTS of ideas that I don't have time to actually create in quilt form. And then I can click around and twist it into new shapes and see what happens...often it's ugly but sometimes there are some fun surprises.
Before I had EQ7, I drew my quilts on graph paper, and I still do that too.
If that all sounds like a crashing bore, EQ7 is probably not your thing.