I have both. I use the one with a guide on the machine that I can move the needle. I found the guide is a little bigger then 1/4" if my needle is in a fixed middle position. The Brother 1/4" snap on foot that Walmart sells will fit my Janome Jem and has outlasted the one I bought at the Janome dealer. The foot for my Bernina doesn't have the guide but I seldom piece with the Bernina.