It heats up so quickly that you don't need to wait, plug it in and straighten your hair.
The reason it's so addicting, because it does something to your hair that makes it so shiny and straight and perfect that if you leave the house without using it you just feel BLAH.
This is what mine looks like!
I love it. There is no other straightener that does as good of a job as the CHI.
Also, you use it to curl and flip your hair, so it's 3 hair tools in one basically.
They also aren't cheap, but it's worth the price for the finished product on your head!