Pros: works well, leaves hair soft and flexible, and it is truly great for color-treated and thick hair.
Con: smell is horrible. It's not fruity like other Joico products, but smells like harsh cheap perfume, and overwhelmingly strong. The smell doesn't fade even after a couple of days, and it will obliterate any other scent you try to wear. I notice it in bed and it bothers my husband, who has never complained about any other hair product I use, so I had to stop using it.
Otherwise, this is a fantastic product. I have super thick, long, wavy, colour-treated hair that pretty much has a life of its own. Few products make it manageable, but this one does. If you have thinner or finer hair, it might weigh it down: my hair can handle really heavy conditioners, but this one feels light to me even though it adds a lot of moisture. It feels amazing when you massage it into your hair, it detangles exceptionally well, and it adds shine and reduces frizz. I notice someone said it smells earthy, so I wonder if there was a different formulation a few years ago? I've tried it twice in the last two years and it's definitely a perfume smell. Joico, please make a scent free version for those of us that can't handle strong perfume or for those who work in scent-free environments (yes, scent-sensitive people will smell it when you are near them). I'd buy this again today if they had a different smell or an unscented version (which would be great for all hair products, so you can choose to wear perfume without mixing scents.). The shampoo, by the way, is much easier on the nose and works well, but it's not as amazing as the conditioner.