I have the CS6000I model. It works well unless you're sewing heavy fabrics or many layers. The automatic button holer sucks. (I'm used to using an old singer for button holes) The decorative stitches are alot of fun! It's simple to thread. The bobbin is a drop in. (Nice!) The bobbin winder is a plastic one. (I don't use it as I have a separate bobbin winder.) Very easy to read display. Tells you which presser foot to use with which ever stitch you have chosen. Overall I am pretty happy with mine. Hope this helps.