I used to shoot alot of fentanyl, but never this street stuff. That is only because it wasn't around back then. If it had been, I would have purchased it no question, because pharma grade fentanyl was expensive.
What it lacks in euphoria it makes up in strength. I was on 380mg/day of methadone at the time i was shooting the patches; I'd shoot one or on rare occasion two 100ug/hr patches (though never at once), which is a whopping 16.8mg of fentanyl per patch. I found that dose to be very strong, many times I'd find myself either on the floor or sort of frozen, zombified, like i was caught in a freeze frame. Had a dissociative element at that dose. 16.8mg of intravenous fentanyl could probably kill the starting line-up of a baseball team, or a school bus full of children. But it was readily able to break through the blockade of my monster methadone dose.
Had street fentanyl been around then as it is now, I'd probably be dead. Although maybe not -- I've never OD'ed on opioids, and i really pushed the envelope on a continuous basis. Then again, if I shot 16.8mg of fentanyl right now I think there is almost no chance I could survive it without medical intervention.
The current fentanyl plague is truly a disease of Chinese origin, and the complacency of the Chinese government constitutes complicity in my mind, and though im not a conspiracy theorists, components of it resemble a chemical weapon, because who does it predominantly kill? -- young men, who would (if they had survived) staff our military, drive our economic, repopulate our nation, etc. More likely its just greed though.