I used it before. It is very good. I bought one like 2 years ago when i was
back to China on Taobao. Around 120 RMB. It is a pink one from Philip ( i
don't know if i spell it right). It heats up very fast. What i did was
putting mascara first then use it to heat up my lashes. Then i would
probably do the mascara again. The lashes then become very long. I had the
same concerns like you, if it would hurt my eyes or if my lashes would fall
down because of frequently heating. If you use it very often, you would have
a better feeling on the angle to curl up your lashes without burning your
skin. Anyway, i think it is better than the manual lash curler.