God I hate the comedown. It wasn't so bad the first few times but after a while it would be so so depressing for a few days/weeks after. Idk what it was I never really abused it I only did it maybe ten times and always spaced out a month or longer. Sometimes over a year. But after a while maybe I was just getting stuff that was cut more or something but the comedowns became almost unbearable. I haven't done mdma in probably like 6 years now. But damn is it ever fun while your coming up and rolling, especially with some good friends and music.
The come down isn't even that bad. You just don't want to stop the good feelings and stay in the ecstacy a little longer. You don't want the night to end.
I hate the come up though. There's always a point I feel kind of bad and as if everything around me is too much. Then I usually need like 10 minutes alone and I'm the happiest boy in the universe. The only good thing about it is that I know that I will feel great in a few minutes.
The come down/crash of Amphetamine though is so bad that I don't want to do it anymore. MDMA doesn't necessarily have a come down when you drink enough (but not too much) and sleep enough, which usually is pretty easy MDMA.