IŽd almost be 100% positive you could use the two free nights at the Fairmont Empress. Based on the info IŽve received youŽll be able to redeem points for ovation certs (of which there are four main categories; A-D), and IŽd assume the two free nights for signing up would also be Ovation certs (though possibly slightly more restrictive, e.g. Ovation cert C category).

The Empress currently is in the lowest Ovation cert category (A), so IŽd be very surprised if you couldnŽt easily redeem the free nights there.