Works perfectly and appears to have good WiFi reception. The Roku is great for either UK or US content. In our case it's BBC iPlayer, ITV Hub and other UK streaming services. The picture quality is somewhat better than I get with my Android TV boxes. If you want to stream UK or US services you will need a DNS server to mask your IP address and these are only about $5-6 p/month. I use Getflix. You could use a VPN but unless you have a very fast NBN type connection you may encounter buffering issues. The delivery time was quite long at three weeks from the UK where the unit is despatched from. It was okay as I wanted a UK Roku which automatically loaded UK streaming services. The tiny unit is feather light and can easily be mounted on a service with the double-sided provided tape. The power source can be the USB port on a TV. My Sony powers it perfectly. There is also a UK fit power supply included in the box, but any USB charger would do the job.
The only reason I didn't give a 5 star rating is due to the fact that apart from Netflix there's possibly no other Aussie streaming apps available to Roku and the longish shipping period it took to arrive.