I have a Juki CP-180 industrial. I just love it. My dealer told me all you have to do to sew heavy fabric or leathers is to put in a larger needle. I use it for the speed of sewing long seams like putting on borders and seaming backings. i recently tried it for piecing and decided I love it for that too. .The main thing is to look for one that has the oil bath system for lubricating.