One of the biggest wins here is this little tidbit:

> When you install Puppeteer, it downloads a recent version of Chromium (~71Mb Mac, ~90Mb Linux, ~110Mb Win) that is guaranteed to work with the API.

A lot of the chrome interface libs about at the moment require you to maintain your own instance of chrome/chromium and launch the headless server with your command line, or require a pre compiled version, that can quickly get out of date (https://github.com/adieuadieu/serverless-chrome/tree/master/...). Having this taken care of is a blessing.