Does anyone use this? I got two as a promotional item many years ago and they stayed in my sewing kit. I was taking apart some Waverly Fabric curtains for the fabric to make cushion covers, WOW does this thing go through stitches fast!! You just have to scratch lightly at the thread.
Now I will say it was heavy fabric and the lining was something I didn't care about. Not sure I would use it on quilt blocks!! But if you are taking apart clothes for fabric or something like that, it beats a seam ripper and scissors.