I had an Angler in the past and sold it to someone because it just doesn't work unless you have a large flat area (or one of those acrylic things) around your machine. Now with the Bernina, it comes with a flat bed, so I guess I will look at getting it again. Great tip.
The Eleanor Burns method involves using her specialty rulers. It's fast, accurate and wonderful. However, you are limited to 4 sizes. I use her method most of the time, but sometimes I need another size. The Angler also works great for cheater corners and I do tons of those.