2C-E is one of the most powerful psychedelics that exists. I find it extremely neutral in character, and very analytical and introspective. By neutral, I mean it's not predisposed to euphoria, it spans the range of emotions and I tend to feel very objective and matter-of-fact on it. I also find it extremely visual and its effects on the [perception of sound and music are otherworldly.
Snorted 2C-Xs are extremely intense, anywhere from 2-3x as potent as orally and they come up FAST and can be a bit much to handle. 2C-E is very powerful and intense even orally. I would never snort 2C-E. Not only does it (and all 2C-Xs) cause damage to the nose because of being extremely caustic, it is also just a qualitatively superior experience when taken orally. The mental effects develop more, and they develop more slowly, which allows you to get more from it and have a more comfortable experience.
AMT is a triple releaser, so it releases serotonin, dopamine and norepinephrine. I believe it also is a serotonin agonist, and on top of that it is a weak MAOI. It bears at least as much pharmacological similarity to empathogens like MDMA as it does to psychedelics, or for me, quite a bit more like an empathogen than a psychedelic (but some people seem to get more psychedelia from it than I do). It doesn't have the same crash that MDMA does though nor does it share its mechanism of neurotoxicity. In fact it leaves me a bit tired afterwards, but with an antidepressant glow that lasts a few days, unless it's abused, then it can drain you pretty bad and give you brain zaps (by abused, I mean taking it days in a row or too often). It is alpha-methyl-tryptamine, it is the amphetamine of tryptamines (just like amphetamine is phenethylamine with a methyl on the alpha position, AMT is tryptamine with a methyl on a alpha position). It lasts for 16+ hours and can be nausea-inducing on the come-up and can have pretty strong anorectic effects. It's one of my favorites. With the succinate salt (which is surely what you have, as the freebase and HCL salt have not been available for a long time to my knowledge), a good starting dose is 50mg, though I prefer 60-70.