When a stitch is selected, general information on the stitch's set up is displayed across the top of the stitch selector. An additional reference guide to the stitches on the machine's top cover means the sewer doesn't need to reach for the manual for every stitch change. Horizontal slide levers' on the machine's front set the stitch length and width. For additional control, upper-thread tension and foot pressure can also be adjusted. I used each machine to sew a fine buttonhole for a rayon shirt and a wider, denser buttonhole for denim with excellent results.
Corded buttonholes are also possible.
Something that might take some getting used to is the way the machine stitches out a buttonhole. The first leg of the buttonhole is sewn in reverse, which means that when sewing buttonholes perpendicular to the edge of a placket, for example, the foot should be centered over the end of the buttonhole furthest from the edge. The built-in needle threader really works, and a handy thread cutter is provided, too. However, in my testing the additional pieces seemed to provide greater contact with the fabric and thus smoother control while feeding fabric under the foot, even when the fabric's edge was actually at some point under the foot while sewing. One possible disadvantage for quilters is the infinite needle-position feature.