DH bought me a Supreme Slider for Christmas...at my request. I used it this past week for the first time to FMQ a fairly large quilt and I LOVE it. My machine is set into a cabinet - so everything is flush/even. My bernina's bobbin loads from the front - so I don't have to move or tape down the slider at all. Under these condition, I think its a great product. But if I had a top-load bobbin, or had to tape the slider down, I would not feel the same. Note, I also use some grippers called Batt Scooters...a very handy-dandy helper with FMQ. I can easily move/grip the quilt and just keep whirling and swirling along. Now if I could just keep my shoulders down I'd be in great shape!!