On Alpha-PVP right now from a very reliable and legitimate vendor; no question of purity. I have not tried MDPV unfortunately, so I cannot do a side by side comparison but...
This stuff fucking ROCKS MAN. Wow. I wasn't expecting a lot of euphoria from what I have read about both it and MDPV, and was honestly regretting ordering it while waiting for it to arrive as I thought it would just make me really jittery and anxious. I would describe the high as a mix between methylphenidate and methamphetamine, however I have only had meth once (a year ago), so its hard to compare in that respect.
I bumped a ~10-15mg bump on my way to work, and then (I'm now thinking I did not wait long enough for the first one to kick in) bumped another of approximately the same size at work in the bathroom. All I can say is that I FUCKING LOVE this shit so far! Very clean energy, pretty damn euphoric (to me at least), and great for focus.
I should also add that I am prone to anxiety from stims (even from caffiene) and have noticed none so far with this. I highly recommend all budding amateur researchers across this wonderful board to partake!
I live in Canada btw, and grabbed this up really only because it is going to be illegal extremely soon. Got a gram for an amazing price :D
Will update if I decide to redose (and how that feels), and when I comedown (if I ever do... lol jk).
UPDATE:
It's been a little less then 3 hours since my first and second bump, and so far I have done 2 more small bumps (maybe 3? Can't remember for certain). The high hardly degrades as you redose; It maintains a pretty constant level of euphoria, clarity/focus, and anxiety (minimal). I will however add that I have some tachycardia at this point (I always do with stims, even get it 30% of the time with energy drinks) which is easily noticable but not overwhelming, and I am grinding my teeth a little bit while not paying attention - nothing major in terms of side effects.
The compulsivity of this substance however is a little concerning. I am never concerned with addiction regarding stimulants, as I usually have little desire to do them again (immediately) after a good session. However, I am concerned about my tendency to redose for a longer period of time then I always plan to. The "moreish" factor of this compound is less then Mephedrone (and I am assuming MDPV), but seems to be greater then Cocaine. Maybe it's because I get shitty street blow, who knows. All I know is I am cutting myself off at 1:30pm to avoid the comedown from hell, and so that I am relatively back to baseline by the end of my work day today. Will continue to update.
Mods, if this belongs in another section (or as a trip report), please let me know.