There is a learning curve but I love it on my Bernina. You do need the ruler foot and the extra thick rulers for ruler work. The gripper tape that goes on the back of the rulers is helpful and creative grid rulers come with a little bit of non slip edge on them. Angela Walters has a new small ruler called Sid that comes with a short straight edge and a curved side. Westalee also has many fun rulers and both Westalee and Angela have YouTube videos on ruler use.