I have used only Fiskars for about sixteen years now and have never even thought about changing. They work great and don't cost an arm and a leg. (I still have my original cutter that I bought when I first started quilting. It still works great, but they changed the design a bit a while back, so I bought a newer 45 mm version and a 60 mm cutter - love them all!) But that's not to say I wouldn't love Olfa or another brand, I just have never had the need to change to try them.