Effects, at least post-op, will vary based upon the individual.
I had a period of time in the early 2000's where I went a few years basically not taking anything but continuing with a rigorous athletic regimen. When I went back to start on ethinyl estradiol again, my numbers were actually better across the board than they had been when I had last been tested before stopping. At the time I had stopped, I was roughly five years post-op.
During that period of time, I did have a fracture in my hand that came from the athletic endeavors, but it was something that likely would have occurred no matter whether I was on meds or not.
I did not really notice any changes to skin texture but then again, even pre-HRT, I had an electrologist who told me my skin and its reaction to the treatments was very much akin to her natal clients.
Now then, that being said, would I recommend someone go off HRT post? generally speaking, no, at least not without consulting one's treating physician.