Imovane is not the same thing as Ambien, I believe it's actually more potent. Anyway my experiences with Imovane have been pretty good. It is a VERY effetive sleeping aid and a mild to medium halucinant if you avoid sleep. Anything over 7.5mg is good, 15mg is good though might be too much for a first time, mabye a LITTLE less. The visuals you get are not like gravol type visuals but more 'colorful' and much smaller stuff happening which you kind of have to look for. Best thing to do on this drug is look at the carpet on about 15mg, DO NOT GO OUTSIDE on this drug and for the LOVE OF GOD, do not drive. This drug makes you a zombie like benzos do but besides that it also makes you hallucinate so your in for double zombification when your on it. It leaves a bad aftertaste in your mouth the next day so make sure your not too hungry because food will taste like shit and so will everything you drink.]