It is very dangerous. Utterly addictive. People have vanished in it, never to be seen again. Sort of.

I mange to pop in and out, and then only return after several weeks; but it's hard. It always takes a few days for the effects to wear off, and I only do it from sheer bloody-mindedness: yes, I can handle it, no, it's not eating me. But it is hard. I wouldn't recommend this to anyone who wants to stay sane.