I had never owned a rotary cutter and my biggest fear (being a little clumsy) was that I'd grab it by the blade and cut my fingers. I got this one and it works really well and is comfortable to hold, etc, but the best part is that little red button. It locks the blade "behind" the yellow plastic so even if you grab the round part, you won't get cut. You can also use the red button to keep the blade "out" if you're cutting a lot of fabric. Overall, really nice!