I have a Brothers with embroidery capabilities so that uses the start/stop button. I also use it when doing FMQ as it keeps an even speed and I do like that I don't have to reposition a foot pedal all the time. Also the thread cutter and needle threader are a joy. I do need a machine that will sew over thick things like seams in jeans etc. Does anyone have any suggestions for that? Even an older used model.