Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Has a learning curve but is very useful

I've had this product for several years and found the number system on the circle to be a bit cryptic. Recently, however, I've been motivated to find a way to cut circles of precise and widely varying diameters to fit inside the popular scalloped circle punches and cutting dies. I pulled out the Circle Scissor and made a series of circle cuts then wrote the coinciding number and diameter measure on the cutout. Now I have a handy reference. The advantage is that you can make graduated circles in tiny increments. I know they have a newer version of this product that is probably easier but now that I've figured this one out, I'll be using it all the time.