It was actually pretty damn good. By far the nicest naphyrone (or "other stuff" sold under that name that clearly isn't) I've had. Still won't be one that is to everybody's taste but those who have only ever had "NRG-1" are likely to be pleasantly surprised if they come across it. Didn't burn in any major way - stung for a second or two when snorted and tasted bitter as hell (but didn't burn) taken orally.
I think the most unequivocal difference between this stuff and other versions I've had was the way it ran on foil. Put a lil pile on a piece of foil and heat gently from below. If it melts to a golden yellow and runs freely and easily without burning it would likely be the same as what I had. If it turns to brown goo, frazzles quickly, or burns leaving a nasty black residue it isn't.
I think the most unequivocal difference between this stuff and other versions I've had was the way it ran on foil. Put a lil pile on a piece of foil and heat gently from below. If it melts to a golden yellow and runs freely and easily without burning it would likely be the same as what I had. If it turns to brown goo, frazzles quickly, or burns leaving a nasty black residue it isn't.

