I'll be making a couple of trips to the US this year (as well as a few intra-Australian trips to visit friends and family) and as a result may have use of the IHG Ambassador program. After all, USD$200 is pretty good value for room upgrades, late checkouts and a free weekend night certificate.
However, before I spend the money I wanted to check if there were any caveats to these benefits.
In particular, I'm a little concerned about the free weekend night certificate, which I'm assuming is a "Stay one night get a second night free" voucher rather than 2 nights' free stay. Do any of the IHG hotels (the Australian ones in particular) restrict their use to certain times, or have any additional charges that might surprise me?