DPT is very powerful stuff. It had a very different feel to DMT (obviously), and I was very aware that it was synthetic in nature. It was definitely interesting, and seems to have some form of chemical character, like LSD and all the 2C's do. Very electric and pushy. I think part of the DPT experience...at least at peak doses...is the experience of terror...experiencing terror can be a useful thing.
Fot me, 100mg+ snorted was like experiencing a cosmic tsunami or explosion, with ever more powerful waves of mandalas sweeping through me...there was also a notable yin yang feel to the experience...dark/light, joy/terror, agony/ecstasy, laughing/crying etc.
It definitely didn't seem to click as nicely into my receptors as neatly as DMT or 5-Meo-DMT...I was always aware that it was synthetic and had been altered by Man (and I'm not saying this from a naturals vs snythetics view point), so it felt a little abrasive in this regard. At this dosage the experience moved so quickly that it was almost like the fear never had time to build, you're never in one place for long, the experience unfolded so rapidly.
However, the peak of the experience, was to experience my mind completely out of control, somewhere else at the mercy of an incredible voltage running through my brain, along with the accompanying feelings of primal fear ('flight or fight') that went alongside this, and this being a new psychoactive, and I didn't know how far I was to go before I peaked.
However, while harrowing, surrendering control of your mind for a brief time, is liberating in itself. The peak ends very suddenly, and then one is in a very pleasant, and open after glow state for a few hours, still tripping, and chatting about deep or emotional things, but nothing compared to the onslaught experienced prior to this stage. I felt great the next day to.
If there was a next time I would meet DPT at a lower, 50-75mg dosage, to try and slow down the speed of it somewhat, so more may be brought away from the experience. I think some people may find it interesting and useful, but I do suspect that DMT may be of more use to the majority of us.