EQ is almost as much fun as a sewing machine - I make a lot more "virtual" quilts these days than fabric ones.
I love being able to try out different arrangements, borders, fabrics, colors, etc. If you like to play with computer graphics programs or you're still using graph paper and colored pencils to design your own quilts (or tweak someone else's) you should give it a try. It's so much fun, it should be illegal.