I have a Pfaff Grand Quilter and Inspira frame which is a whole lot like the Mega Quilter. There is a good sized learning curve to use this machine. I suggest you join the Yahoo group for Pfaff Grand Quilters. The moderator, Chris, is the most knowledgable person on these machines. There is tons of information and troubleshooting tips. Don't give up. I found that prewound NEB bobbins, and using poly embroidery thread gives me great results.