Very odd stuff this. I had been waiting to try it based on reports here and when some arrived last week I was looking forward to a longish acting stim. Although I had taken 5-IT the day before I had not had other stimulants apart from coffee for two weeks so I started low at 15 to 20mg insufflated and found that it packed a fair kick, similar to MPA but shorter acting, with elevated heart rate and an immediate feeling of alertness. However, within a couple of days I found that I was doing a 20 mg line every hour or so and it reminded me of average coke, inasmuch as it did not affect my appetite at all and I could get to sleep OK if I left a couple of hours after the last dose. Not especially speedy, but a good livener for getting stuff done; not particularly recreational, no euphoria but a mood lift. No comedown the day after. I probably wouldn't bother reordering it but I wouldn't say no to a line socially. I think that I expected more from it, probably because I remember speed from the old days. Given that I finished the packet so fast, I'm guessing that tolerance builds really quickly.