I use all different brands of blades in all cutters. I've never had a problem. I have several worn out Fiskar cutters but they are years old and have given me more service then I could expect. I will not ask for a replacement because I wore them out. My favorite cutter of all is the Quilter's Select rotary cutter. It's weighted and cuts like butter with any brand blade I use. Right now my favorite blades are Olfa Endurance blades.