The foot and the needle positions a machine offers decide zipper quality long before machine class does. How to check both with your own zip.
Three things decide the purchase: what the clamp holds, how patterns are stored, and who can service it locally. Price should arrive last.
Elastic and stitch class come before brand badges. Work out which stitches your styles need, then compare machines on cycle time per operation.
Shirt making is short, precise operations, and duty cycle decides before motor size does. The four seams that push a domestic machine past its limit.
What a beginner actually needs from a first machine, which features earn their place, and the specifications that only look important on a listing.
Repair on this class is settings, trimmer and clamp rather than wear. Record what the panel currently believes before you change a pattern.