I'll give everyone a brief run down of 10 friends of mine and myself that have tried it within the past two weeks. This is without bias and just the straight facts per what I saw, heard and felt.
Me: I initially mixed it with TFMPP which was stupid because TFMPP seems to give me panic attacks...that come and go for up to a week after ingestion. The first time I was smoothed out by the peak of the mcPP, which actually worked to induce enough euphoria to overcome the panic. The second time I tried it, I drank it with some juice..30mg initial dose and I dosed another 30mg an hour after the same way. The effects were pleasant but a bit mild. The third time I just bombed a 65mg capsule of it and had a blast. My stomach was kind of tight during the come up but after that it was quite pleasant.
A: Tried it with a shite load of codeine in his stomach. He took 30mg and said it felt like it sobered up his codeine high and he took another 30mg and an hour later stated he was "rolling" quite nicely... he was rubbing himself down, so I knew he was atleast feeling damn good

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B. Took 30mg and 30mg an hour later, stated it felt like MDMA but without the euphoric edge.
C. Crazy tit... he took 3 capsules with 65mg a piece in them, depsite being advised not to, but oddly enough felt no nausea and ended up on the floor next to the speakers with a perma-grin and one eye half open with the other closed. He said he had never felt so great physically, and that each bit of the music sent tingles through his body. On top of this, effects didn't fade until 7 hours after ingestion.
D. Never took MDMA before, took one 65mg capsule of mcPP and stated he felt "high as fuck" an hour in and would not stop laughing. No reported nausea.
E. Not experienced with MDMA either, took one 65mg capsule and in a very similar manner felt high, took a few hits of pot and stated she has never felt it so much before. No reported nausea either.
--Might be of value to know D. and E. are boyfriend/girlfriend--
The next 5 people all went to go see Tiesto and each took a 65mg capsule prior to entering.
F. Reported feeling horribly nauseas and that she wanted to throw up but couldn't. Ended up vomitting 3 hours in and said she felt much better after that.
G. No nausea and stated it felt like a strong dose of MDMA. Was dancing all through the set, enjoying himself.
H. No nausea and was very socialable. Jaw clench, stated it felt like MDMA but with a trippy side to it. (This I can see)
I. Slight stomach discomfort during the come up but after that said she had the time of her life. Stated she was "peaking" for 5 hours straight.
J. No reported nausea and said it felt like ecstasy but a bit more relaxed on the body.
There you have it. It seems that some people just get nauseas with this. If I would advise anything it would be to try it out with a dose less than 50mg and see how it reacts and then just go up from there until you find your ideal dosage. It is not nearly as forgiving as MDMA when it comes to dosage... the difference of 30mg could mean the difference between a night of bliss or a night of terror.
Hope some of this helps somebody out there, stay safe!