Lenovo Chromebox Flex 5 13"

But if you’re wed to the sub-$500 price point, you’re unlikely to find better build quality, with a better keyboard and a better port selection, than the Flex 5, in either the Chromebook or Windows spheres. Premium Chromebooks with chassis to rival those of premium Windows laptops have been on the rise for a few years now, and it’s nice to see that trend extending to lower-priced devices as well.

Still, even at that higher price, the Flex 5 is a good deal for what you're getting. In the UK, the configuration is better and more expensive at £530. Lenovo doesn't currently offer the IdeaPad Flex 5 Chromebook in Australia, but my system's price converts to AU$578.