I own a Maker 3 and purchased this Maker 4 as an upgrade for the faster cutting speed, but either the machine is defective or the speed upgrade has sacrificed a lot of accuracy. The circles and curves are always slightly wobbly, and shapes with rounded corners are not cut all the way around (the start and end of the cut do not align so there is a small corner that needs to be torn out). It was also missing the magnet in the storage tray where you store extra blades. Really disappointing, I do not recommend this Maker 4 over the previous models.