Seems like a good deal.
Similar to the Harvey norman ~$500 Acers but this has fingerprint sensor and USB-C.
Spare slot for memory can any stick upto 16GB for 20GB RAM total) and 2.5" SSD bay.
Can also swap the 128GB NVME SSD with another 2280 NVME SSD
EDIT: This comes with a US power cord. A converter like this will be needed to charge this, something like https://www.amazon.com.au/INIBUD-Australia-Travel-Adapter-Wh… or https://www.amazon.com.au/CLPC55-DOSS-Clover-Iec-C5-Applianc… (just the first results, not the only ones).
Sorry forgot to mention this is from the US so will need to buy a converter for the plug or a Aussie clover plug lead