Aussy graduate degrees are okay, equal to Singapore graduate degrees, but not as prestigious as those from well-known US universities. They are good enough for working anywhere in Asia but may not be too well known for working in the US. You choice of where you should get your graduate degree should consider where you plan to work, i.e., a US degree for work in US or Asia or an Aussy/Singapore degree for work in Asia but not in US.

This is important for you to consider because getting a graduate degree is a lot of hard work and if you happen to eventually work someplace where it is not recongized or does not carry enough 'prestige,' it can be a big source of frustration. People with graduate degrees tend to expect better status than those without. So choose where you want to study and work carefully.