The Bernina has a 1/4 inch foot to buy - I like the one without the guide, and it's accurate for me. Pluse they are very easy to change. Disadvantage might be that they seem to be unique to Bernina, so no others will fit, though you can do it if you buy a different shank first. Having said that, I wouldn't part with either of my Berninas, I love them to bits.