Instruct: Classify a given review into positive or negative sentiment.
Query: doesn't work for me!

I bought this to curl my hair because it got great reviews on amazon. I tried it and it won't curl my hair AT ALL!! i can't even figure out how to pin the rollers to keep it rolled up. Either way i tried holding the round thing with my hair wrapped around it and nothing happens. Maybe i'm just not getting it lol. Got the chi iron instead and so worth it!