I just found out that the Gandquilter machine is like the Janome 1600. I have it with a HandiQuilter frame. Notice I said with, not on. I'm still waiting to refine the setup. To that I want the handi handles (which are out of production, but it looks like I found some) and the quilter's cruise control (which is still in the box).
The frame is set up on a 4'x8' folding table. I actually never measured how wide I can quilt on it. Normally, I don't go to the larger sizes.
Like everything else - it takes practice which takes time which I don't have.