The spray works - it definitely prevents underarm sweat, but doesn't do much for the rest of the body. I've been applying for 7 days now and I still sweat on my back and chest. For it to be effective, I've been having to spray 3-4 times per body area per night, meaning it'll run out very quick.
On the other hand, the deo stick doesn't seem to do much. It just clumps up in little snowflakes that leave a trail wherever you go and are hard to clean off surfaces; it also doesn't smell too nice.