2C-I was pretty fun. I ordered it online from a Canadian research lab, paid with credit card, all above board, lol. The panic attack was because of cannabis; over the years I've had half a dozen cannabis-related panic attacks, 2c-I on the other hand was pretty mellow, with lovely visual patterns. Felt less "spiritual"/introspective than shrooms, so to speak.
Also, after I got hospitalised, the ER paramedics returned the small bag of white powder to me. I don't know if that's common practice , but I appreciated the gesture.