I just bought one at the Cincinnati quilt show. The demo was on a drunkards path and looked great and easy. To be fair, I haven't practiced with it much. I was disappointed that the plastic seems to be not as "slick" as my other plastic feet. I used it on an apple core pattern and it was easier, did not have to pin heavily and the fabric lined up well. I think if I could practice more with it, it would be a useful tool. It just seems to be a tool that comes with a learning curve. It does come with ankles to make it fit low, high, slant, and snap on feet.