I think 2C-E is the most valuable experimental psychedelic I have worked with, although I have yet to try a 4-xxO-MIPT type substance.
When I first obtained the material, I knew nothing of BL and all I had to go by was PiHKAL and a few (count on one hand) reports on Erowid to go by. Most of these reports suggested that it was very deep, worth repeating, but "not really fun".
I first made up several doses of about 14.5 mg each, and handed them out to several friends who I felt were experienced and mindful with psychedelics. They were aware of the dangers of ingesting a research chemical, but they trusted my judgment on the dosage and my description of effects.
Everyone who took 14.5mg doses including myself and my partner reported very deep, intense and enjoyable trip. Curiously, everyone who took it "had a blast" and certainly felt that while it may have seemed to have a dark side, it was lots of fun.
Then there was my own room mate who did not do any research on the 2C-E, but did intuitively decide that 15mg was too much. He split his dose in half with another friend
and he said that it was a difficult experience for both of them. My room mate said it was about as intense but also had much stronger side-effects than 25mg of 2C-I.
After learning about his experience as well as reading a report on Erowid about someone experiencing strong dissociation on only 10mg, I decided to be a lot more careful about recommending any starting doses for would be users.
My other room mate at the time was also an avid tripper, but she has a strong tolerance to most psychedelics. She consumed 30mg on her first dose and reported that she was "mildly tripping" while her own tripping partner (a rather big guy who has taken extraordinarily large doses of many research chemicals at that) was having one of the hardest trips of his life on 15mg.
Then there is a good friend of mine, an artist who has always enjoyed employing psychedelics toward his creative endevours. I gifted him with 15mg of 2C-E and 10mg of 2C-D. I explained that the 2C-D was a possible "experimental smart drug" and the 2C-E was a powerful trip. I carefully labeled the bottles, and reminded him to consult his own copy of PiHKAL if he forgot anything I told him.
One day when he had a particularly busy day ahead of him, he decided to consume what he some how thought was the smart drug. Needless to say, it never occured to him, throughout the 15mg 2C-E trip that he was actually tripping his face off and was not on simply a smart-drug. He described the effects as being "amphetamine-like" and that he was amazed at the increase in creativity and motivation. Then he told me that a few nights later, he split the other sample with his wife and they barely felt anything and then went to bed. It quickly became clear to me what had happened and I explained.
He had spent the entire day answering the phone and email, speaking with many potentially important business contacts while on 2C-E. He also wrote a rather drawn out and critical essay on the subject of aesthetics. It was quite amusing to read.
Just last weekend, I suggested that he try 17mg. This time, he was completely nailed by the drug. He said it was intense enough to be challanging at times, and he had definite difficulties communicating with the rest of the group at times.
Anyway, I have learned that the dose response is highly variable from trip to trip even. Set, setting, and expectations may also play an especially significant role in the effect of the drug. This may be something that it has in common more with LSD as opposed to most other phenethylamines which seem less set and setting dependent.
My second and third trips were at 20mg, and recently, I have tried it at 18mg and 12.5mg. The 20mg trips were both incredibly intense and psychedelic. They were comparable to acid, but stronger visually and weaker mentall, I think.
The 18mg trip was almost a (++++), and I have noticed that I usually do feel very euphoric on 2C-E trips. The euphoria is especially strong right as I drop out of the peak. I usually feel a strong body euphoria along with an intense feeling that I am some how in harmony with the universe.
The 12.5mg trip was last weekend and was especially noteable. For one thing, it was still surprisingly strong at that dose. For another, I confronted something that I am normally immensely fearful of and felt completely unafraid.