I have one! And, I, too, can't live without it.
HINT 1: I know some have said they couldn't get it to work. I hold the thread on both sides....pushing it toward the little lever. The minute I pull the lever down, I let go of the thread. It threads it each and every time.
HINT 2: It will not, EVER, thread the needle if you put the needle in upside down! :mrgreen: