Can't comment on the long term, but I can point to a couple of experiences with MXE that led to positive, substantive results. On a few occasions (only a tiny fraction of the zillions of times I've taken MXE) I've felt myself separate into two distinctly different parts that were both familiar: one of them I'd called my everyday self (ego, I suppose), and the other I'd call my permanent self.
During one of these occasions I was able to have a dialogue between the two parts and to write down a few notes because I felt the answers I was getting were worth recording, even if notes wouldn't capture the full scope of the knowledge. As it turns out, the notes weren't necessary because I've never forgotten what I learned at that time - it's etched into my mind.
Anyway, this was about 6 months ago, and the result is that I started and completed a personal project that I had dreamed of doing for years, but had always been too afraid of doing. My feelings about the project now that it's done are good (I was happy with the outcome), but the real value was that moment of knowing that pushed me to make a fantasy a reality. I do actually feel that I'm more complete than before for having done it.
Of course I've also had heaps of experiences that weren't noteworthy (so to speak) and also done some kind of silly things while manic from it. But this was one thing that I can point to with a real result, and for which MXE was the catalyst.
(PS. do you want to buy some snake oil? I swear it'll lengthen your cock by at least two and a half inches!)
