It's not a party psychedelic. It's short if you compare it to your typical perception of time, but feels vastly longer; your perception of everything changes. If you take any MAOIs, don't touch DMT. It'll last longer and you'll likely be miserable if you aren't experienced with it.
Also, n,n,dmt gives you more visuals than 5-meo dmt, but 5-meo dmt is better for introspection in my experience. Each have their purpose, and neither should be at all underestimated. If you take either, understand you don't control the trip once you've begun. Let it guide you, accept what happens during it, and find a way to learn from the experience. As with anything, do a lot of research prior to taking it, test it, and use it when you're in a good setting and state of mind for it.
He's that one guy that works at Vance Refrigeration, I think