For me I love the olfa quick change I have the 60mm and also the 45mm splash and purple one. I also have a 45mm gingher which is also nice but ever since I bought the splash I hardly use the gingher. I do also have the olfa ergonomic but find I get a cleaner cut with the quick change models so I put the safety style cutter in my daughters sewing box because it is the type that closes automatically even if you don't lock it so there is never an exposed blade. Nothing beats olfa IMHO