I've used cheaper curlers in the past and while they've worked, they haven't given me the results I wanted. Now that I've used this curler it's probably the best I've tried so far, and isn't overly pricey for what it does.
Really nice eyelash curler however they are quite expensive - not sure if they are worth the price. I also have the Elf eyelash curler which are around $5 and just as good. These work well and are good quality but I don't think they need to be so expensive