This product features a blade constructed from the highest quality tungsten steel, so it never fails to do the job. Its precise cuts are perfect for cutting out many pieces needed for sewing, especially if those pieces have straight edges. But I've also used my OLFA rotary cutter for curved edges. It cuts through multiple layers of fabric and can also be used on leather and vinyl, which did indeed impress me. I've also used it for things other than sewing. All in all, I love this product. It lets me fly through projects as a speed I've never enjoyed.
The best thing about this neat little tool? I also received a selection of blades. I have a straight blade, but I also have a pinking blade, a scallop blade, and a wave blade. Perfect for most projects. And there are other blades I can add as well. I highly recommend this product to novice and experienced crafters alike.