Australia is a lot more like NZ than the US, and crucially compared to NZ their unions didn't get smashed like ours did so still hold a lot of sway. This is the main reason why their work conditions are often a lot better, as is their pay. Culturally they're pretty similar but maybe a bit more open and friendly than Kiwis, we can be a bit quiet & insular but weirdly moreso to people we see regularly than a random tourist stopping and saying hello. We are also super clique-y and it can be hard (even as a kiwi) to make friends if you're new to a city etc.