After being chemical free since a 'big chop' in 1994, I was hesitant about putting anything permanent in my hair that would alter it's texture. I bit the bullet anyway and went with this smoothing treatment at Ulta. My hair is just past my shoulders even when not straightened.
I'm not displeased but, I do miss my natural hair. I've experienced some breakage and knotting/tangles but, not more than I expected. (hello! that's why I don't to chemical straightening!!) The worst of it has been the smell. It does have a distinct odor.
On the upside, I kinda like the new curly/wavy pattern I get when I wash and go. I let mine air-dry. If i want more 'style', I randomly use my curling wand for a 'go to' style.