I try out a lot of different cutters, and have bought several different ones. I have and use the Olfa ergonomic ones, they are pretty good. But I really like the Martellis. They do take getting used to, because you not only hold it differently, you keep your arm/ elbow in a different position and apply the "push" differently. With a standard type cutter you sort of keep your elbow "out and up" and put a lot of pressure on your fingers. The Martelli only uses the fingers to keep the cutter handle in the palm and points the way you are going. You need to keep your elbow tucked in close and use the whole arm to apply the cutting pressure. Very different motions, but I like the difference. The "spring" type with the hard and soft settings and I don't get along well. sigh. And the original style Olfa, the "stick" type, always feels awkward to me. But I can use them if needed.
Have fun, Pati, > I've had the old Fiskars models of rotary cutters and the newer, more