okay..
JWH-018 is simple, when you find the dosage that works for you (which is not unlike cannabis) you have an amazing time! If you start too small or start too big, then you just need to adjust your dosage to get your own sweet spot with it. IMHO, the "right dosage" starts off like an indica dominant pot strain, and slowly gives you energy as a sativa would, and finishes somewhere in between.
Personally, including the medical effects (killed my migraines and my nausea), it is very similar to cannabis! The problem is, a lot of people are talking about Spice (unknowing that Spice was actually HU-210, and only some of the blends contain JWH-018, many of the blends that is not the dominant cannibinoid -regardless of what you people are reading on wikipedia).
So, who in here saying JWH-018 sucks has ordered it in pure form and vaporized it / "chased the dragon"? I'm betting very few. So to the guys that have had JWH-018 pure, what do you think?
Also, smoking weed and then having JWH-018 will potentiate it.. so if you try it, try it by its self.
To be honest, it barely has a taste.. slightly chemically, and since it is not a green herb, it SHOULD be less carcinogenic than weed (theoritically). Don't argue with me please, I'm not saying weed causes cancer, on the contrary it prevents the development of cancer.. but it is combusting something (unless you vaporize weed).