So I punched in Nov 12 (Friday) for a one night stay (P.A. day for York Region schools I believe) and got $249 with their "48hour" code. Punched in my sis' work promo code and I got $229.
Then ended up going to Kayak.com and got a $166 (USD) rate. Kayak linked me to Easy Click Travel and I just booked thru them. Total was $197 (USD) for a family suite.
Not so great a rate if you can get it cheaper elsewhere. Weird...
Thanks for the heads up though. Wouldn't have remembered to check GWL otherwise!