I just got mine about a week ago. I never knew there was such a gadget until I was in my LYS and saw it in action.
I was fortunate enough to catch it on sale as Joann's for %50 off. I cannot believe how much I have used it already. In fact, I have completely rewound brand new skeins, just to use the center pull!
For every diaper, spill or uninvited wall-drawing, I breath and remember the emptiness before my angel was born.