The only domestic machines that have a stitch regulators are Berninas. I love mine. And you rarely run into someone who doesn't love their Bernina.
To me, using the BSR was pretty intuitive, but I know some people who really did not like it -- until they took the classes and learned how to use it correctly.
There are several different user options w/ the stitch regulator -- mode, feet, access method, and if you are not liking one setup, you may well prefer another. I started out using the big clear plastic foot and the hand motion mode, but after learning more, I find I prefer mode 1, the open toe foot, and using the foot pedal. It just depends on your personal preferences.