I wanted to like these. They cut well overall and fit well in the hand. It's nice that they always spring back open. However, I find that they cramp my hand with long use. The blades also struggle with thicker yarns or when the material is not perfectly taut. I thought not having to flip scissors around and open them up might help shave precious seconds. However, after a few multi-hour sessions, I'm finding that it's no faster and in some instances slower due to struggles with cuts and the hand cramping. Back to my traditional looped scissors held in hand.