It does the job and smells good. But it is EXTREMELY DRYING.
I would only recommend if you really need to neutralise brassy tones. The purple pigment is very rich and will do just that. But it will compromise the moisture of your hair and dry it out. Use a very rich moisture mask after using.
...and I've tried A LOT! It removes brassiness without making your hair look ashy or changing the colour, it just keeps it so fresh and makes your hair SO SO shiney. It is also crazy hydrating and smells amazing!