I have a Pfaff Hobby GrandQuilter 1200 (9" Throat) on a Pfaff (built by Grace) Next Generation frame. The combination has worked well for me, so far. But I do long for a larger machine. If you do get yourself a Qbot, be sure to get the 4D Quilt Design Creator software. That way you can create your own quilt motifs on your computer and stitch them out with Qbot.