My best experience with AMT, a dose of about 40mg, was pretty outstanding. I did take half a pill of E with it, which maybe affected the trip somewhat. Other times were not as good, but still a good time, possibly because of inaccurate measurement or, as I was told, it was from a less quality supplier.
AMT visuals seem somewhat unique. They are unlike 7 visuals and most def different from cid visuals. They are almost strictly light sensitive visuals. Colors appear brighter and sharper, and you'll see a soft halo around every light you look at. You don't see shapes change or anything like that. And if you're somewhere with a lot of lights to look at (i.e. a rave) you won't be able to stop looking all around in every different direction, and you won't really know why you're doing it.
I also find it gives me a lot of energy, especially early on. And the mindset is good, not too much mindfuck and more social than other tryptamines or hallucinogens. The problem is the 3 hour wait for it to hit and the fact that it lasts about 18 hours. If it weren't for that, It'd be one of my favorite drugs.
And IMHO it's a million times better than Foxy. That stuff is crap.