It supports most OSes rather nicely, check the docs for a long list of config options. It creates a local package store and configures your user's path for it, each tool is managed with a custom plugin that IME works flawlessly and versions are handled better than anything else I've ever used. It's the only way I'll install Golang or NodeJS lately, and I had good luck with it for Java too.
Ah cool, maybe I'll check it out someday. JVM isn't a huge part of my daily work though so I'm pretty happy having it managed the same way as everything else for now. I like the intuitive simplicity of a .tool-versions file in a repo that supports a huge variety of tools.
