We use Visual Studio Code because it allows us to easily and quickly integrate with Git, much like Sublime Merge ,but it is integrated into the IDE. Another cool part about VS Code is the ability collaborate with each other with Visual Studio Live Share which allows our whole team to get more done together. It brings the convenience of the Google Suite to programming, offering something that works more smoothly than anything found on Atom or Sublime Text
We use Yarn because it allows us to more simply manage our node_modules. It also simplifies commands and increases speed when installing modules. Our teams module download time was cut in half after switching from NPM to Yarn. We now require all employees to use Yarn (to prevent errors with package-lock.json and yarn.lock).
We use G Suite because it allows us to store all of our documents and emails all in one place, with setup and sync far easier than Zoho Suite. Not only does it make it easier for us to collaborate but it allows us to have a separate place for all of our business related projects.
We use Netlify because it allows us to quickly update build and host our app for free. As well as having a wonderful UI for our DNS and nameserver management. As well as costing less than Amazon Web Services and Google Cloud.