In my experience, Australia Post is excellent at getting your package out of the country and handing it over to the local postal service. Most packages sent via standard shipping arrive at your home in the US, UK, and NZ within 10-14 days. Occassionally packages take up to a month. In most cases, this is not because they are lost, but because they've ended up at the bottom of a pile at an airport, or because your country requires extra attention at customs. Make sure you put your phone and email on your order to get customs notifications if this occurs.