Review (3/5): too complex, may need 2 people & need the right length...
This did not work for me.
I have long hair and the way it's meant to be used (according to listing instructions) it is impossible for me to use it. My hair sits below my bra line and I can't lower the bun shaper that far down. Perhaps two people are needed for long hair.
I tried it on my mom's very short hair and it seems you have to twist in opposite directions (as pictured/in the video) to lock the hair in place. I was able to roll it up and create a bun, but it was really tight at the base and I have to roll it enough to secure the top hair. She tried it on her own and was not able to do it on her own on her shoulder-length hair.
I give it three stars because you can create a bun, but it is too difficult, the hair needs to be the right length and two people may be needed, which is not practical.