I love this attachment.  I have used it for many years and have canned a lot of sauce using it.  The only issue I have with it is that the hopper where the food product is placed is cracking where it attaches to the mixer.  I do love KA products and was disappointed that this had failed to meet my expectations for sturdiness that I have come to expect.  I have many other KA products: pasta roller/cutter, meat grinder, etc. and they have all had a reliability, sturdiness and quality that I have relied on.  I was hoping to buy just the foos hopper but it appears that I would have to purchase the entire set.