I took it once. Was a good high, bit like pills really. Very happy/chatty/heightened senses etc. Lasted around 2 hours maybe a bit longer I guess. No comedown that I noticed but I was at Reading so I was just permanently not feeling great.
BUT it tastes like absolute ****, was the worst taste ever. I snorted it. It hurt my nose bare too, made my eyes water etc. Not worth it lol. I've never had any urge to take it again, but maybe that's cos it tasted so butters.
But I wouldn't adivce taking it really, cos it's so new no-one knows the long-term effects, and it's such a disgusting chemical. You might as well drink lighter fluid instead of vodka.