I've been using rulers for quilting for about 3 years now. I have completed both the Janet Collins and Angela Attwater quilts. I had my rulers and foot for a long time before I started using them as there is a learning curve. Sew Steady has wonderful videos and currently on Facebook they are having a lot of online instruction from their instructors. My LQS started giving classes on rulers and that was when I finally pulled out my Westalee starter set and dove in. When purchasing rulers just make sure you know if your machine is a low or high shank (if you order from Sew Steady they will make sure you get the right foot). A ruler for a high shank machine will not work on a low shank machine (too thick), I bought some Angela Walters rulers and they are 1/4" will work on a high shank machine but not a low shank. Also be careful if you order off Amazon as some what they sell is knockoffs that are cheaply made.