Ranked in these QuestionsQuestion Ranking
Pro One command deploys and rollbacks
The content is deployed immediately through the Firebase CLI. Once it's uploaded, the content is served immediately. If you have made a mistake, you don't need to re-upload a new version, through the Admin dashboard you can easily rollback to a previous version.
Pro Well documented
The documentation and quick start guides are informative and easy to learn.
Pro Assured future support
Google acquired Firebase in Oct. 2014. This gives Firebase a degree of trustworthiness in their service and future support since they are backed by such a large company.
Firebase locks you in to Google's service; you can't run it on your own servers.