I hate bad reviews, and this is only so long to justify it.
I ended up with two bottles of this stuff after friends got them in their boxes and hated it, too. I love dry shampoos so I was excited to try a high-end product.
First, I would advise anyone who does not have blonde, white, or warm gray hair to never use this. I have bright red hair and I thought I was going to have to wash my hair before I left the house to get this stuff off, which totally defeats the purpose of dry shampoo.
Second, it works for volume, but it's sticky. This stuff was so sticky it made little globs on my hair, like when people WAY overdo the hairspray. And I couldn't just brush it through my hair because the sticky made my fine, curly hair get tangled up. I got the globs and white out by rubbing my head with the heels of my palms. This took about 10 minutes. Might be great for a wedding, dance, clubbing, pageant, or an Amy Winehouse costume party, but not for normal wear.
Third: smells really weird.
Lastly, the packaging of this product really annoys me. Normally I'm pretty indifferent to product design but I would have never picked this stuff out of a store. It looks like something my grandmother would have bought out of a 1980s AVON book.
Luckily I work in a place where I can leave products in the bathroom with a note of recommended use and they find a new home.