I have EQ5 and I'm extremely happy with it. I've designed more quilts since getting the program than I ever had the whole time I have been quilting. I also suck at figuring out how big I have to cut my strips for rotary cutting and EQ figures that out for me. I say it does over estimate on the fabric yardage (even if you're counting in a little extra in case of cutting screw ups), but that's only a minor problem compared to how much it helps with my creativity.