I love the stitch regulator on my Bernina longarm. Prior to the stitch regulator, my stitches were bigger and uneven. After a couple years (when I started quilting without the stitch regulator) I was finally getting some decent stitches, but the stitch regulator makes perfectly sized stitches. It's possible to go too fast for the regulator to keep up. When that happens, it will keep beeping and it's annoying and you can turn off the beeper. You're kind if defeating the purpose then. It's made me slow down to a reasonable pace, though, and after using one now for over 5 or 6 years, it's made me a better quilter I think.