Methylone is definitely different than mdma. a lot of people pass if off as molly which should be pure mdma. Imo It does not have that magic that a good pressed pill or some nice clean molly has. It definitely can be a good alternative if its the only thing around but
it should only cost a fraction of the price. this is where a test kit comes in very handy. you wanna make sure your not overpaying for this stiff because it wont have you smacked like some quality mdma based pills.
I've never quite understood the test kit crowd. If you're informed enough to know that whatever you're buying is not MDMA you really have a few choices - 1. don't buy it. 2. buy actual MDMA
Your post is pretty accurate though.