These are selling out fast in stores, looks like people have picked up that they are a good thing. Not the cheapest Android TV on the market, but a lot easier to return if you don't like it than a Kogan.
I've purchased one of the 65" for my elderly mother and she's very happy with it. The Android TV functionality and Google Assistant remote is everything it needs to be. Fast, intuitive, easy to use and has a good prospect of it's apps remaining functional for longer as it gets them from the Google Play Store. It works with all the major FreeTV / Pay services (Netflix, Amazon, YouTube, ABC, SBS, Seven, Nine, Ten) and music services as well. It also works with her Google Home Mini.
The picture quality is punching way above it's price point, and the built in sound would actually be tolerable to use.
https://www.ekoconsumer.com.au/usg-android-tv
https://www.bigw.com.au/product/eko-55-4k-ultra-hd-android-t… - $549 (Was $699)
https://www.bigw.com.au/product/eko-65-34-4k-ultra-hd-androi… - $649 (Was $699 on previous special)
The 65 was $549 during boxing day / new year sales.