New Bernina with stitch regulator

Has anyone tried the new Bernina with the stitch regulator? It is
suppose to be the same type of thing that is on the long arm machines.
When you are doing free motion quilting the machine stitches the same
length stitch regardless of the speed you are quilting. Does it really
work?

When I get home from vacation I thought I would take a basted baby
quilt to the store selling the new Bernina's and give it a test drive.
Has anyone done that yet?

Susan