When I first turned it on in macOS I thought it wouldn't last very long, but I find myself liking the darker colors in the system, as well as on the web and in apps. So now with iOS dark mode, I have everything set to the same look.
The schedule would be annoying I think, as it is quite a big shift to deal with (two times a day). I already didn't like that about Night Shift, although with True Tone turned on it's less noticeable.