First off, the smell and texture of this product is to die for. I would buy it again for this alone.
With that said, I have very fine hair and occasional problems with frizzy hair during humid weather. This product worked great for days I would sit in the office all day. However a little bit of humidity is all it took for me to become a frizz-ball. Also the volume was very minimal. This is truly a light-hold mousse. Great for what it is, but beware this is not a strong volumizing product.