I've been looking for a decent chair for my home office and this one seems to have a pretty good rep. I noticed the price dropped today and combined with the coupon brings it down to:
$177.20 (Nylon base, without arms)
$217.20 (Aluminium Base, without arms)
$225.20 (Nylon base, with adjustable arms)
$265.20 (Aluminium Base, with adjustable arms)
Free delivery to Metro areas, $11-$19 for country/regional/remote. See http://www.winc.com.au/page/free-delivery for more details.
Lowest I've seen since the last Staples EOF/eBay deals. Enjoy!