I used this lash curler a few times and never really seen a difference when you compare it to a normal lash curler. It is simple to use and has nice packaging.
I have relatively long lashes that are dark but I'd never tried a conventional curler and I thought this would be fun to try. It does work quite well, I didn't notice a massive difference straight away but I think they would work well on someone with thinner lashes! I was worried about the heat at first but it's quite soothing, and it doesn't get hot enough to worry me! Nice packaging and easy to use :)