Hi, welcome to Bluelight
if you just wanted to contribute your opinion or experience summary I can add it to the centralized thread later, but if there is a topic you want to discuss a bit more: what is it?
For me DXM causes physical side-effects as the more disturbing aspect or effects, a feeling of pressure on the head and feverish hotness. Dissociative headspaces don't really mess with me that much and they haven't been that extreme for a while - I've gotten used to the temporary derealization and depersonalization. As long as other arylcyclohexylamine dissociatives remain available to me I don't see the point in using DXM.
However reactions to DXM (such as how agreeable it is physically) vary a lot, moreso than with most other drugs.