Smart light switch in Australia, which one is good quality?


Recently bought some smart light switches from eBay Australia, however, I found the quality is not promising.
The circuit board is poorly built with lots of terrible welding
The wire terminals are bit loose
The frame is made buy recycled plastic.

For those reasons it’s not surprise they are cheap ($50)

Anyone knows about smart light switches in good quality? Don’t mind paying bit extra but I would like to receive quality product as well as good customer service.