I know I shouldn't be answering because I don't have this foot BUT I have considered it a few times. I am currently making a large apple core quilt & think it might be a good project to test it on. I'm not having any problems with just pinning it & going slowly, but if you like gadgets.... you might find it very helpful. I did a search on curve master foot reviews & there are certainly lots of differing opinions. Before you buy the foot, could you have your shop do a demo on it, and then let you sit down & use it yourself?