I have the 6600 and a 760 that I take to class. Love them both.Try them out and see which one you like best. the 6600 has the Accu-feed, thread cutter, needle threader, and when I had surgery on my right heel, I used the stop/start button exclusively. I have used it since when I'm having trouble with the right leg. It also has lots of decorative stitches, snap on feet, except for the Accu-feed feet. I really like my Janome's.