Long time looker, first time posting :)
Temple and Webster has this ErgoHuman chair on sale
Black: https://www.templeandwebster.com.au/Ergohuman-Plus-Elite-V2-…
Grey: https://www.templeandwebster.com.au/Ergohuman-Plus-Elite-V2-…
If you stack with Shopback's 20% cashback + 15% westpac lounge bonus cashback (capped at $50 each) the price is brought down to $529 + shipping ($43.59 for me in Mel) which is slightly better than this popular deal around 3 yrs ago.
https://www.ozbargain.com.au/node/590261
Hurry as the Westpac lounge bonus cash back ends tonight (27th Oct).
Based on the comments in the deal above, this seems to be genuine Ergohuman chairs and looks like most ozbargainers who bought this were happy with their purchase.
I have ordered one and delivery estimate to metro Mel is around 3rd Nov.
I've got a Mesh and Upholestered one. I'm very happy with it. That's a good price you have for the full Mesh one.