Wanted to share my personal experience (xpost)
cross-posting this with the quitting 7oh sub FWIW...
Had to create a burner account for this (that's what I get for using my name for my OG reddit username)
Came here to share my ups and downs. I have been a steady kratom user for 4-5 years. Started with caps and powder, graduated to enhanced, then to opm and mit45 and finally to 7oh (with a little unadvertised EEEMGEEE in there f-u 7stx). I have quit black tar, ox-codo, opans, fetty (ahem, need a friend for fet branded as "east coast powder" about 8 years ago). This has been, hands down, the worst withdrawal I have ever faced. I detoxed off a very heavy tar and pill habit (among an assortment of substances) cold turkey inpatient with only comfort meds, and have done a few rapid sub detoxes.
This is long, but here's my experience. 7oh for about a year, secret/unknown emmgeee for 5ish months. Quit on 4/1 - 7 days of hell... dissassociation, endless restlessness and insomnia, crippling fatigue, pain, agony, and destroyed stomach. After 7 days, I had barely improved. The only comfort med I had was clonidine, and the "goggles did nothing." So I saw an addiction doctor and started a sub bridge. I had 14 8mg strips and stepped down each day (needed 3 strips the first few days). After 10 days, I jumped off the subs at 2mg (a little higher than I had hoped) on Saturday, 4/18. I stabilized and felt a semblance of normal on the subs, and then I have struggled all week. It's manageable, but a lot of disassociation and scrambled brain feelings on Tuesa and Weds, and difficult sleep. This dual agonist mu and delta stuff with the emgeeem is unreal. All this to say, I'm 24 days off all 7oh and similar product, and 7 days off subs, and see light at the end of the tunnel. I wanted to offer this to counter those who say it's easy, I mean, good for you, but this has been the most fucking difficult detox I've ever faced. Not stopping now, getting back into recovery and working to recover in all the ways.
Good luck, fellow travelers. (if you need to hear it - this sucks, embrace the suck, it does and will get better)