I have really enjoyed working with the Westalee Templates on my Bernina and on my HandiQuilter. I'm also in the HQ ruler of the month club. If you own a Bernina, the Bernina foot is soooo much better than the Westalee foot. Right now, I have the Westalee foot with the #77 adapter, but it doesn't have enough clearance for my HQ rulers.
There's a learning curve, so if you don't get it with the first try, keep practicing. I teach the Home Machine Quilting Club, where we learn ruler work, walking foot and free motion quilting. It's important to have a good grip on the back of the ruler. I like Handi Grip the best. Another important thing to learn with the rulers, is to stop half-way through a movement, check if you're going to end up in the right place, then reposition the ruler if necessary. Machingers are awesome, and really help with controlling the fabric.
The stitching is a little hard to see, but here's the sample I made for the shop.