I love the stuff. Or, used to I guess. Opiates were not my mainstay, but if I ever got the chance to abuse them, I would.
And really, I used to abuse just about everything I could get my hands on. I think I stuck with the booze primarily because it is legal, available everywhere, cheap, and when I drink it I know exactly what I'm taking (as opposed to street drugs where all bets are off).
But the interesting part (and part that perhaps relates here) is I don't recall noticing a difference in how I felt from one to another. Each had its own subtleties, but the net result no matter what I was on was that I felt better. Or at least feeling better was the perception.
It's sort of weird to think about it that way. High was high and it didn't matter to me how I got there.