Lsd lasts twice as long, and while the peak is substantially similar, the come up and down is fairly different — lsd tends to make things mostly funny or amusing, and mushrooms have an almost mdma like euphoria and feelings of love. I described mushrooms as being like getting a hug from the universe.

I’d choose mushrooms over lsd any day of the week.

But at their core, they are very very very similar experiences, to the point that I think it would be difficult to tell which you took if you didn’t know.