I have little tolerance to dissociatives having never really been into K back in the day and although I messed with MXE a fair bit that was a while ago.
I have been experimenting with K over the last moth or so, the stuff I'm getting in fairly small crystal that crush to a nice fine powder, it's from a fairly trusted source.
I never really hold on MXE, I certainly drifted off into a shifted world where my physical self was little more then a secondary consideration but never total emersion.
With K I can achieve a total loss of physical self, that where am I? who am I...what am I ? sensation followed by a loss of the ability to even consider such things, I think there is still further to go, more journeys to make to land further away. I find it an intriguing substance and like MXE ultimately benign with little to no psychological issues to be dealt with afterwards.
It also helps me with sleep, I can do a good dose as a I lie down in the dark and just settle in, more often than not I'll just wake in the morning with a satisfied feeling of both rest and a journey I can really never fathom.
It's not something I find compulsive at the moment but it is something I know I'll be doing from time to time as I think it has a lot more to give, at the rate I use it £20 a g is good value for money.