I have a Grace Z44 that I have used only once. I found it hindering and it took up the living room floor space. It now sits in my bedroom awaiting someone to rescue it. I prefer just quilting in my lap with a running stitch using long milliner's needles. The basting is what is important, good basting and you can quilt with any method.
I have looked at Barnetts Lap Hoops and thought I would prefer his floor frame that swivels over anything if I were to use the quilting stitch. I have my grandmother's oval floor frame but cannot pivot the fabric, plus this means it pools on the floor, not a good place with a house full of pets.