The voice action is really fast, and I've been able to be more productive when I can speak my thoughts instead of typing (brainstorming a doc, an email, a message to a colleague, etc.). It's also super work-friendly because the dictation never leaves the local device and is never shared with a server or third party.
I also use the screenshot capture feature often when vibe coding. I can easily take a screenshot, dictate it, and paste it into the chat (in any vibe coding tool I am using).