It's awesome tool which should be used in every company doing JS/TS to speed up development, and remove need to care much about code style - which will be great by automated format.
Everyone on the team can be on the same page about style and focus more on good quality engineering instead of styling nitpicks. Prettier works, is fast, and is extensible. It also supports other languages and file types such as TypeScript, .graphql files, CSS, and more.