2-AI is really good, for studying, cleaning and quite euphoric, and that's even with an oral dose. It does share similarities to regular amphetamine.
Yesterday though I didn't eat anything and took 200mg or 2-AI spaced out over about 5 hours. Then after that I felt quite sick. I decided to eat something but then I just vomited 10 minutes later. This has never happened before, I do believe that it was because I hadn't ate a thing all day. Plus I had a bit of a cold anyway.
It is a superb chemical in my experience. The comedown normally very minimal. Just don't take it on a completely empty stomach like I did.