All these people say methylone, but they don't know what they're talking bout. They repeat what they read online. They dont even bother to try good quality bk-mbdb. Butylone is much better than methylone. It lasts longer, has more magic, and gives more of a "90's MDMA" buzz. It actually reminded me of some of the 90's pills I used to get. But from what I hear, a combo of b1 and m1 is the best.
Methylone on it's own is pretty worthless after a while, you just get a tolerence, or very sick of it. It lasts an hour, and if you do it too much, it won't do anything but make you dizzy. m1 is strictly a combo substance. It's great mixed with long lasting stims like 4-FA. But again, on it's own m1 is pretty shitty. This is because it's just too weak compared to MDMA.
There is a new drug 5-IT which feels almost identical to methylone, except more stoney/smackey/magic feeling to go with it...and lasts much much much longer.