<So what improvements have you seen?>
Well... I had long standing foot and ankle edema, with a rust color that extended from my shins to my feet, and also lots of toe nail fungus. Dr. Cheney speculated that the rust color in my skin was iron depositation from dying red blood cells. Anyway, that's all gone. And interestingly enough, I had a line on a couple of my toe nails, straight across the nail, where the fungus was gone and was being replaced by healthy pink nail. I looked up how fast toe nails grow (~ 1 millimeter per month), and it corresponded to when I began hosting. No more fungus. No more edema. No more rust colored skin.
I used to have some level of gut discomfort all the time, from mild to debilitating. That is mostly gone.
Then... well. My testicles started to grow, and my reproductive health improved significantly. Hey, I'm just saying.
The improvement in gut symptoms I would list as significant, for it was always occupying some portion of my thought life. It's hard to describe, but it's always there, bothering you. You can't not be aware of it. That's 90% better. Not completely well. But much better.
So, that's one important thing I suppose, and then some "minor" issues that improved. As I said before, I'm going to host anyway, barring any unforeseen difficulties or contraindications. I think it's just part of a healthy lifestyle.