I think mise gets a lot right. I use it for environment variables, Python virtualenv creation and activation, and task scripts.
I've been a software developer for over twenty years and am usually reluctant to use new tools. But mise has been a fantastic addition to my dev workflow.
I have two problems with Mise: There isn't a page with the most common commands I might want to run, and whenever I try it, some Python imports mysteriously fail. Then I disable it, and everything is fine again.
I might be motivated to persevere if I only had one of the above problems, but with both of them together, it's too much of a hassle.