I got the 9100 for Christmas. It was missing the foot pedal, so we exchanged that one for another. At first I hated it. It skipped stitches, and that was one of the cons I had been reading about on this machine, and I also had a tension issue. So I took a deep breath, poured a cup of coffee, and went to work learning the machine. I spent a whole day going through the manual. I "played" with it for a few hours, I threaded and retreaded, I adjusted the top tension from 0 to 9 and when I changes the needle all the problems just desolved. The set screw on the needle was set so tight at the factory that I thought I was going to have to get help getting it undone. Since that one little ahha moment the machine has ran beautifully. No skipping. No problems. I love it. It is a cheap machine, but although I sew pretty much everyday, I am only sewing for myself and my family. If I were a professional seamstress or quilter I would buy a more expensive machine, but this one is great for me. Again thank you all for the comments and opinions.