Hair removal

my mum uses this recipe, and i used it the other day and its awesome!

get lemon juice and sugar in a pan, fry till essentially caramel consistency, take out of pan, let cool.
moisten with warm water, and spread over leg hair.

rip off as with waxing, but then just remodel it so a clean section touches hairs.

So you basically have a chunk of caramel that you repeatedly peel off and reshape to stick back on?

Is it easy to tear it off quickly?

Is it advisable to use on "sensitive" parts?