Setup is very smooth. I'm impressed how well this integrates with my macOS. Also a bit suspicious, but unless/until there's real evidence, honestly I think it's just because of VS funding + how well the setup / integration went.
Linux and especially smaller Unixes is where tools like this are really useful. My experience with Linux is that most stuff has to be installed on the command-line, or if there is a GUI it's clunky and/or missing features. And I would consider myself moderately experienced with the macOS Terminal, but I often got stuck / slow with Linux.
I really hope they add support for IntelliJ and other integrated Terminals. I'm pretty sure I end up using those a lot more than standalones.