I'm a circle-holic so I have, or have done, all mentioned here. The go cutter is great if you use lots of dies, etc. the templates are flexible for varying sizes and the easy circle cutting ruler makes quick work of multiple layers of fabric...a plate could be useful for multiple layers too. I think tools are wonderful if they make a job go quickly (and accurately) and if the cost/benefit is within reason. I just bought a curved ruler thingy at a show and I think maybe I spent too much on this impulse buy. The demo seemed easy but now I wonder how many curvaceous applications I will have in my future quilts.