Are you hearing more noise? Is it the stitches not the same? Is it too slow? too fast? hesitates? What is it doing that you don't like? I love it when I get two machines side by side - same machine but not the same feel. It is amazing. It gets more fun when you have 3 of them and each sounds different and feels different but can be the same model. I don't know if I could afford 50 yards of silk...