I've been on the kratom rollercoaster for two years now. The first year my use averaged 3-4 times per week and withdrawal was never experienced during that time.
In the past year my use has been virtually daily for all intents and purposes. I have literally never dosed more than once per day, however, and almost always at night. Roughly 8 grams. I've quit cold turkey three times in the past year. Each time I make it about a week and a half, and then I'm back to it.
Withdrawals are definitely present, but manageable - I am still able to go about my day at work, etc. It feels no worse than having a moderate cold, accompanied with mild depression. My sleep isn't even particularly impacted, I take a little longer to fall asleep and I wake up an hour or two earlier perhaps is all. No RLS to speak of.
I attribute my lack of severe physical withdrawals despite being a daily user to three things: 1) I have no prior history of addiction save for cigarettes, 2) I never, never, never use more than once per day, and 3) I generally eat quite well and am physically active.
The mental/psychological part of the kratom addiction equation is a whole other ballgame, however. For me it has a very powerful psychological pull, I believe in no small part because of my lifelong issues with anxiety and depression (although thankfully neither have been severe). Like I said earlier, even though I've quit three times relatively painlessly I always come back to it. It's hard for me at this stage to tell whether my kratom use is due to my mental and psychological issues or whether my kratom use exacerbates those issues to unhealthy levels.
In either case, I determined fairly early into my two-year affair with this plant that my relationship with it is unhealthy and I believe detracts from my quality of life. Yet I am still a daily user, and my attempts to quit long-term have all failed thus far. With the winter fast approaching I don't believe that I'll be off it any time soon.
Be careful everyone, if you must use daily use only once per day like me and hopefully you too will be spared major withdrawal issues. Do not underestimate the psychological pull and power of kratom however, it is strong and sneaky. Good luck to all!