I use the foot pedal for piecing, especially chain piecing, but use the button for FMQ, and for things like wrapped rope baskets... There is just enough delay before the machine starts going to get my hand back down on the project.. I can set the speed.. and if I touch the foot pedal it turns it back off.. very very handy and I love it.. Just not for everything. I have a Pfaff Creative Vision 5.5 Love this machine.