Have an 18" Innova on a 12 ft frame. Wonderful machine, easy maintainance, great company support. The frame is so sturdy and easy for add ons. I have added a batting cage and a holder for a full roll of batting so far. After 2 years with it would guess I have quilted maybe 80 items, 3 of those were king sized, 7 ot 8 queen and many other, smaller sizes. No robotics for me, love to design my own freehand and go for it. Kind of wish I had gone for the 22" and not roll quite so often.
Best wishes with your search and decision.
Lynne in eastern KS