I tried it a few times and I think it worked pretty well - but the downside was I could just as badly remember my dreams as without the calea. I woke up a few times from very vivid dreams, but I could hardly remember a thing. Although I always realized I had been dreaming really vividly, so maybe if you have techniques to remember dreams, then it is really worth it.
btw. the guy in the video has a very good sense of staging himself... the hood, the dreadlocks, the low angle camera with the slow shutter, lighting the cigarette, taking a sip from his mushroom-cup, the background music, the deep voice. He really seems very determined to spread the word. Guess he's owning a smart shop ,LOL
Or maybe he's just on mescaline or something, or wanting to impress the ladies ;)
I don't wanna be grudging, I'm just analyzing the video message - and I think it is a quite powerful video message he provides there, with quite some effort going into it - so I was asking myself why he does that. Ah damnit, I guess you don't care and think I'm crazy... but it's my job, so I was just saying...