I would say it's more akin to Salvia in its intensity and duration, 15-20 minutes. The experience itself is like a very fast, concentrated acid trip.

What's interesting to me is that my experience, and others that I've talked to, are all very similar: you blast off and break through spacetime; then, the electro-mechanical gnomes try to show you some deeply complex information, but it's incomprehensible to you, and that somehow amuses them.