I have not, but Shulgin and friends have..
DOSAGE : 50-100 mg, orally
DURATION : 2 - 4 hrs
QUALITATIVE COMMENTS : (with 44 mg, orally) "I was in a public place, and might have had to interact with someone at any moment, which probably accounted for a grim paranoia and wish to retreat. I had my full effect in just over an hour, with almost no visual or physical properties, but a crashing fear of interacting. I had to retreat to a private place to read and appear deeply involved, but in another hour I found it an increasingly easy task to pretend to be normal. I carried it off, OK. Good sleep, no residues."
(with 75 mg, orally) "Onset seemed to be at 40 minutes, which were mostly physical symptoms, which seemed to fade away at 1.25 hours. All in all, an absolutely profound, enriching experience with both Brahms (G-minor piano quartet) and Verdi (requiem) contributing mightily. All over in 3.5 - 4.5 hours and a delightful afterglow."
(with 150 mg, orally) "There was a slow onset. It was more than an hour before something started, which I didn't believe at first but which became completely undeniable. I was heading toward an appointment, and walked right past the meeting place. I was unable to concentrate on just where I was and where I was hoping to go. With enormous effort I located my appointment coordinates but the sidewalk was doing funny things and I again managed to miss my target. I sat down to try to manage things, but I couldn't."
(with 150 mg, orally) "The effects were manifestly notable in 50-60 minutes, quite intense from hour one to hour three. Then there is an hour when trailing is still perceptible. By hour five it is all over. There appeared to be 'vegetative effects' as they used to say. I definitely noted sweating of hands and feet. There was a hollowness in the chest. There was an insignificant presser response, but pronounced tachycardia, with my normal resting pulse in the 60's going up above 100 for a while. I think that 150 milligrams is a little too much."
(with 400 mg, orally) "Too much."
(with 40 mg, smoking) "I have found that ten milligrams of DET is the size of a match head, so I smoked four of them. The taste of the stuff is terrible -- it smells like burning plastic -- but I don't care. The onset was gentle, in about five minutes, euphoric and empathogenic, and there was an immediate camaraderie with the group I was with (they were using between twenty and forty milligrams apiece). I found myself stroking a calico cat, and asked a friend, 'Do people purr?' and was told, 'Sure, if you know how to listen.' We began scratching one anothers backs, and made vaguely purring noises."
(with 90 mg, smoking) "This was with 3x30 milligrams, at ten minute intervals. It took almost too much concentration for the last toke. Too stoned. Some emotional insights, but I can't remember them to write them. Fine muscular tremor. Some hangover the next day, lassitude, fine edge of thought was blunted."
(with 40 mg, subcutaneously) "There was a slight burning and a numbness of both the hands and feet some twenty minutes. A few minutes later I felt an alcohol-like intoxication and a slight drifting of thoughts. Music was slightly enhanced and eyes-closed patterning was noted, with a predominance of greens and oranges. No music, no patterns. The effects peaked at 30 minutes, but the numbness I felt lasted up to three hours. Overall, this was somewhat disappointing."
(with 60 mg, intramuscularly) "The yellow walls with many windows in them, massing over one another, appeared in increased intensity, had an air of medieval mood about them. The ornaments, painted white, on the roof and eaves had a particularly strong decorative effect. A test subject, without a painter's fantasy, must certainly be greatly impressed by this depth and colorfulness. I felt as I did when I began to learn painting, when I tried to look at things consciously with a painter's eye. I felt that the drug acted on fantasy, in the first place, increasing its dynamism. On a subject with normal mind, this experience will certainly have an astonishing and marvelous effect. An artist with creative mind and fantasy will be less impressed."
(with 60 mg, intramuscularly) "About 15 minutes after the injection came the same vegetative symptoms seen with DMT. The illusions and hallucinations were the same. But the alteration of the surrounding world and the emotional reaction to them were strong and impressive. The mask-like faces of the persons, the dream-like mysteriousness of the objects in the room gave me the feeling that I had arrived in another world, entirely different and queer and full of secrecy and mystery. The wonderful but strange world attracted me at one moment, but the next moment I did not want to accept it. I became perplexed; I did not know what I ought to do. I began to walk anxiously up and down, and said, 'I ought to do something, I must!' There was a peculiar double orientation in space and time: I knew where I was, but I was inclined to accept this strange world as a reality, too. The dusk of the room was lightened for some minutes, and again the light was switched off, and that seemed to me as if this period might be an entire epoch, filled with events and happenings, but at the same time I knew that only several minutes had passed."
(with 60 mg, intramuscularly) "The vertigo is gone -- now comes the attraction. I have the honor of seeing the elements of the universe in this moment. As if I saw algae, flagellates under the microscope, in black and white. Now I see some colours, too. As if I saw a shell, the rainbow colours are disintegrating rapidly. One's consciousness becomes air-like. From the neck upward I am feeling a shapeless lightness. If we could inoculate this into all men, human inter-relations would undoubtedly improve greatly."
(with 60 mg, intravenously) "I was looking out of the window. I was seeing the leaves of a tree, the color of the grass, people walking to and fro utterly without thinking, like a small child staring at things. I felt as if I were discovering the world anew."
(with 60 mg, intravenously) "The objects opened up their essence to me, I was feeling as if I knew them as they really are, I live in them and was in direct contact with them. I felt an enormous drive to write, to put down the marvelous feelings. The associations came spontaneously, but I was unable to concentrate in a way required for working. Anyway, I did not want to miss one moment of the visions."