I did it once and can attest to a few of these things.

When it first kicked in I was about half way through a song, laying on the lounge. It felt like I had sunken into the lounge and was stuck. The song felt like it was playing from 3 speakers inside my head, but all were playing at different volumes, timings, and speeds.

I have a couple freckles on my arm, which were bouncing and jumping off my skin like fleas.

My friend had a yellowish light in the corner of his room, but it was changing colours from green - orange - yellow.

We also had some universe solving thoughts. I wrote down "Life is a 360° tug of war". I kinda remember what I meant but like wtf. Lots of other stuff we "came to realise" that isn't worth mentioning because when you sober up its just stupid, lol.

It started to lightly rain about half way through, and standing out in it felt really good for some reason lol. So did eating sour/bitter foods, made me see heaps of vivid colours and stuff like my senses were blended. I could see what pineapple tasted like.

When I was outside at one point, it started going bad and I just felt like my chest was tight and I was freaking out, not even sure why. I went back inside after about 10 minutes of freaking, and just went back to normal.

Going to bed at like 5am, after it was wearing off I became slightly paranoid and heard footsteps in the hallway and knocking at the window, even though no one was there. I'm not sure if I would do it again, but it was fun for the most part.