I'm not a Javascript developer so I love that Prettier makes generally good formatting decisions for me, freeing need up to think about the code. It's easy to apply Prettier to any project I'm working on, even if other proper in the project aren't using it.
Using on all frontend projects. Saves our teams time by never having to discuss formatting again.
As a frontend engineer, the code format is very very important to me. I used ESLint at first, and have to manually format every line of code. Later I found Prettier, it really save me lots of time. However, sometimes it will conflict with specific ESLint rules, in that case, you have to manually disable some ESLint rules in .eslintrc file in order to let Prettier handle everything.