9.5/10 on Vacuum Wars: https://www.vacuumwars.com/ecovacs-deebot-t20-omni-review/
Their verdict:
We’re impressed with the Ecovacs Deebot T20 Omni. It has every feature a robot vacuum could possibly have, and more importantly, it performed really well in all of our tests including vacuuming, mopping and obstacle avoidance. This may not only be the most complete premium robot vacuum you can buy, but also the best one.
Can vacuum, mop and auto empty. Also has 6000PA suction, which seems higher than most of the other models I was looking at.
The Amazon listing has a nice little comparison table comparing it to the other EcoVacs products, including the Deebot X1 and T10 which seem to be pretty popular here on OzBargain
Helpful link for how to get access to The Good Guys Commercial deals here: https://www.ozbargain.com.au/wiki/tggc_access (I used G'day rewards)