Great question! For me it’s really the needle manipulation. I feel super clumsy and never sure if I made my stitches correctly. I can read charts no problem at all, but I can never get into a comfortable rhythm so I get frustrated and lose motivation to see it through.
Very nice! I was sure it was the no purl pattern before clicking on the link :) I’ve made a few of them as gifts, they always turn out beautiful and are super satisfying to make (quick and mindless).