I had back pain unresolved by prescription meds, ie Oxy, Vicodin and such. So a friend of mine recommended trying Kratom. I found the taste horrible (powdered leaf) but the pain still was less after a few scoops of powdered red. Specifically 1886 Red. I started building an immunity to it, so I increased to five scoop. Scoops = the little plastic scoops they include in the bottle)
For a time as unpleasant the taste, it knocked out the pain. I started with a google search for concentrated Kratom. And finally arrived at 7OS. It was great. Improved pain relief. It was so concentrated,(powdered leaf), it took 3 days to finally exit my system. I read the warnings and considered the klonopin I was prescribed for RLS, and through testing arrived at a 50 mg tab in the morning and a 50 mg tab + my 2MG of klonopin at night.
I have been able to stick to it for the last 6 months. I have been continuously experimenting with vendors and flavors. But what works for me, might not work for you, so the story is just my experience with it (condensed). I have read all the horror stories along the way, and practicing some self control has worked for me.
Good luck on your journey.