"Real" Mixins with JavaScript Objects

object-mix.js

let mix = (object) => ({
  with: (...mixins) => mixins.reduce(
    (c, mixin) => Object.create(
      c, Object.getOwnPropertyDescriptors(mixin)
    ), object)
});

The original classes based version

Example

let a = {a: 'a'};
let b = {b: 'b'};
let c = {c: 'c'};
let d = mix(c).with(a, b);

Would you consider working this up into a tested/released version with full class support? (I know it's pretty short, but so is the original code!)