Couple days is typically worst case scenario. I only experienced that once when I wandered a lot during the experience, so it may not be completely imputable to the drug itself.

Last time I used it I stayed comfortably at home. The day after I could go hiking in the Alps without any problem.

Anyway, the tiredness you feel after using 2-CB is nowhere near as close to that you experience with MDMA, which may last for weeks. Which leads me to think 2-CB would be better for microdosing.

Also this is in no way me advocating 2-CB has being completely safe. Most people who tried it deem it so, but as of yet few researches have been conducted on that substance.

Well, considering the alternative is "permanent brain damage", it's nice to know that after a couple of days you would be back to normal.