The f%&king disguesting taste of salvia will make you want weed more. I've had it and it the real haullicinations only lasted about 5 minutes. I felt it for the non hallucingentic effects for longer (such as being really hot and itchy). But go for it, don't do it really late at night as with most hallucinagenics, even though you wont' feel anything at all after an hour, you won't be able to sleep for another six.

(it tastes so horrible, i reccomend doing it out of a bubbler or bong, def not a pipe.)

Greens on salvia are important, there is no such thing as a second rip off of it. So make sure you hold it in for alteast 30 seconds. It's hard cuz it tastes like ass but you have to do it to feel it truly.