2c-i is a far comparsion away from Ecstacy. Comedowns are light unlike Ecstacy, and as far to my knowledge, it doesn't screw serotonin receptors.

I taken 2c-i over 2 dozens times. The only side effect you should worry about it HPPD, but you gotta take a load of psychedelics like I once did. Try to space your experiences out, doing it from week to week will dampen your spirituality.