Netlify founder here. Firebase hosting is great for simple static content that you push manually.
We do continuous deployment with deep git integration that'll create unique preview URLs for each pull request, making it awesome to collaborate on single page apps or content driven websites.
In general you'll find a very deep feature set that's making it possible to take this approach to building sites all the way from simple prototypes to running, maintaining and serving huge projects.
Zeit is an awesome product that I use as well for my node APIs in tandem with my Static stuff on Netlify. I wish the deploy limits were a bit higher in the free plan, 20 is so low :(
We do continuous deployment with deep git integration that'll create unique preview URLs for each pull request, making it awesome to collaborate on single page apps or content driven websites.
In general you'll find a very deep feature set that's making it possible to take this approach to building sites all the way from simple prototypes to running, maintaining and serving huge projects.