The heating time is relatively fast, about ten minutes. This is the first time I used and they are very handy (though they are a little hot sometimes!), Easy to install and most effective: the time to make up, we get beautiful curls.
I have naturally wavy hair and curls hold very well, I have the same work so they do not go back too.
The only downside would be the size, in fact some larger diameter rollers would be welcome.
I use it regularly but wear should not be a problem if we can take care of the box and curlers!