Having used Mettler's silk finish cotton since I bought my Bernina several years ago, I was hesitant to try anything else... Recently tried Aurofil and like it much better! Less expensive and much less lint for me than the Mettler. I also like Master Piece by Superior Threads, it's the line that Alex Anderson put out. So I'll use up the Mettler that I have, but will probably look into the CT or use Aurofil or Masterpiece after.