Can't remember if I've commented in this thread yet, haven't been around for awhile so possibly not, or I have but forgotten, but I've had the good fortune to try DMXE a few times in that time.
For me, this is actually a superior substance to MXE Itself - for one, while I always found MXE to be quite hard to actually "hole" on in the same way as ketamine is, this substance actually has a hole which is comparable, but also different, somehow more exotic, colourful, less "dark" feeling than ketamine (I don't mean dark as in, bad, I mean literally, dark, most of my holes on ketamine are journeys through somewhat dimly lit spaces - this substance in contrast seems to offer journeys through more brightly lit spaces).
Additionally, in low doses I find it to be far more reliably euphoric and stimulating - I know many dissociatives act like stimulants in lower doses to some degree, but this substance seems to have some significant dopaminergic action (or at least, just "happy action", who knows - at least, I don't know, really - exactly what neurotransmitters are involved to what degree).
The only thing I dislike about this substance is that it seems to give me a kind of verbal stutter and awkwardness in trying to talk or even communicate nonverbally (by which I mean like, texting, not body language and whatnot) at a dose which is too close to the threshold stimulant-esque dose but still too far from the Hole, complete-immersion level of dose. I get this on ketamine too, sometimes, but the line at which I begin to have difficulty communicating is far closer to the actual Hole, so, IMO, less of an issue.
If I had to rank dissociatives out of 10, for reference, I'd put ketamine at a 9, MXE probably a 6, and this would be an 8. Although I think actually all 3 substances are different enough that this scale is kind of apples and oranges and really it depends what you're looking for in a dissociative. As someone who is a fan of Hole doses, the fact that this substance has a pretty deep Hole that is not just bafflingly alien and actually kind of dysphoric as I always (well, almost always) found MXE holes to be significantly boosts it's score. If Holing isn't so much your bag but you prefer to remain somewhat associated with the physical world - well, actually, this substance is pretty damn good for that too, IMO. It's a pretty solid all rounder, actually more euphoric even than ketamine, I'd say, but the verbal impairment and probably other impairments I haven't noticed (I don't really move around too much on dissos) would be a negative.
Actually I had one experience on this substance which was pretty concerning. I was staying at a house that was not mine, at some point I must have gone to the bathroom, because I had been doing DMXE in the room I was staying in but then woke up, slowly realising I was lying face down on the bathroom floor (it was carpeted, eurgh) while thinking I had made it back to the room I was staying in and was in bed.
I don't know how long I was there for, I really don't know at all what happened. It's not the first time I've misjudged a hole but the fact I was actually face down on the ground as if I'd passed out (although i had no obvious signs of injury - I could still have just fallen kind of fortuitously) or at least, with some kind of complete memory gap was pretty worrying. That only happened the one time however.