I've actually never made contact with anything but myself on sub-breakthrough doses, those dosages usually take me to a very hectic and stressful state, very similar to the yopo-come up were you're being bombarded by visions at a rapidly growing pace, which is mostly very uncomfortable.
It's more psychedelic in the sense of "classical" effects however, patterns, colors etc, everything is very simple and similar to the visual intensity I get from psilocybin.