A good description about this data storage

[pedromassango]

For example we need to know how much size we can store, how much it is secure, etc.

[jnovack]

It's on Firebase. Since it's not your Firebase account, assume 0% secure.

[GeorgeWL]

@jnovack I agree there.

Basically should be only used for vanity projects where the data didn't really matter.

Or maybe for a quick throwaway way to fake a real API using fake data if you're mocking up an app.