i agree that AMT tends to be different everytime you do it, however i always thought that about tripping in general. However each pyschedlic does have thier own apparent qualities. anyways, AMT is very long you have to plan your whole day around it and definitely the day after to relax. You're in for an intense trip but its a lot of fun, i found the visuals to be quite unique, very sureal images appearing in carpets or on walls etc, only thing that sucks is i have a hard time remembering most of it. theres definitly empthy with this drug, i've read about the rolling qualities but unfortunatly everytime i've done it i haven't really felt any xtc-like rush.
AMT puts you in a pretty good mood for most of the trip and its a lot of fun. I dont think much mind expansion or finding the meaning of life with this drug will happen, in my opinion its a recreational pyschedlic. keeps you up all nite since its also pretty speedy. negative effects that i found included: massive jaw tension worse than anything xtc could give you because it goes all nite, easily 8 hours of jaw shaking; eye wiggles, not necassirly a bad thing because it gives really interesting visuals but some could find it annoying; you'll probably puke the first time you did it, i think once you take it once and get used to it you wont do it again, thats just me though; the comedown is probably the worst part, i recommend having benzo's on hand for when you want to goto sleep because without them there's no way you'll sleep, except to be cracked out. and i dont recommend trying to work the next day it sucks :/
given all this AMT is still a lot of fun its just not something i can do a lot.