Love. This. Thing.I already have one, but am getting this as a gift for a crafting friend. It is soo annoying having to look for a specific size circle punch (or buy new ones).... This allows you to cut any size circle easily and quickly.Button makers rejoice!! Polka dot paper crafters get excited! This is probably in my top 5 amazing crafting tools that make life easier (and that includes self healing cutting mats and hot glue!)THIS CIRCLE CUTTER WORKS VERY WELL ONLY COMPLAINT I HAD IS THE REPLACEMENT BLADES COST WAY MORE THAN JUST BUYING A NEW ONE. THIS IS THE SECOND ONE I BOUGHT.I really wanted this to work and it does with difficulty, but in my opinion the blade insertion and removal is very poorly designed and quite unsafe. I suffered a VERY bad and deep cut when removing blade. Yes, there are cautions, but it's extremely difficult to remove without injury!!! C'mon Martha Stewart, you can do better than this!Blades do not fit- therefore not able to use- had to returnThis really doesn’t work... was very disappointedI like the convenience of the various sizes available on the circle. However, the blades (inserting an extracting) is difficult and dangerous. I sliced my finger even though I was trying to be careful. The blades are also hard to cut with. Tsk Tsk, Martha!