[mikemaccana]

I was really slow on picking up Babel too. But I've been using Babel 5.x in production for six months without errors - main things were docs that referred to old versions of babel and babelify.

I needed to plug this in the package.json of my private modules:

    "browserify": {
        "transform": [
            "brfs",
            [
                "babelify",
                {
                    "presets": ["es2015"]
                }
            ]
        ]
    }