I have one and I love mine. Pricey but well worth it. I like that mine will swivel for me as I sew to turn. And I sit comfortably at my chair....But I also bought a pvc stand with 4 legs that works wonders at Joann's with a 50% coupon makes it around 50.00.
It is like those embroider plastic pvc ones you put the quilt on and then the pieces on each side stretch it and keeps it smooth and taut.
Here's a few pictures, the best I have here, I'm not at home. Hope they make sense....