Mephedrone- Plant Feed

I just saw this video Mephedrone and it seems that is something that you snort like cocaine what I read it gives you a high like Ectasay. wanted to know what the consensus is on this. Good bad, or whatever. I found this on Wikipedia http://en.wikipedia.org/wiki/Mephedrone-- Found this site that appears to sell it http://www.mephedrone.com/and of course the GOD of all discussions, I found this on EROWID http://www.erowid.org/experiences/subs/exp_4Methylmethcathinone.shtml

What is the deal? Good or no good.