The 201 is a heavy powerful machine that is fast and does not balk, growl or jam when sewing over heavy canvas, denim or multiple layers. It has a large harp space and I can get a King sized quilt through it without too much tugging and scrunching. The feed dogs will drop (large knob, lever system underneath the machine) so that you can free motion quilt. I got this machine free and it sews so much better than my Janome 6500 which cost me $2000 new. It powers through anything that I put in front of it including zippers in heavy duc coveralls.