Singer featherweights and/or 301 are the best for class work if you don't need to zig zag and are only piecing. I have quite a collection of them and DH fell in love with working on them after reading the posts in the vintage section of this site. They sew as nice or nicer than the fancy Bernina 880 I just purchased. But I love it too. Just don't want to lug the big thing around. I can hardly lift it.