Works like a dream for me, as the ads say. HOWEVER, I only take it 1x or 2x/week when needed. If I take it a second night in a row, I find it's less effective, which makes it easier for me to stay off.
Must admit it's tempting to take it every night, "chase that high" so to speak, but I can see it won't work anyway.
What I love is how it gently eases me to sleep, and shuts off all those stress-related thoughts that keep me awake. I think that's the best part- it's like an OFF button.
Night goes by very quickly, though- seven hours feels like a minute. Sometimes diarrhea the next morning and grogginess. So far so good.