I purchased the Entertainment book back in 2003 and used an OnLine coupon to get premium rooms (the ones with the view) at the Kauai Sands Hotel for $55 - a 50% saving. Even using travelaxe I could only get a $80+tax rate. It required an on-line coupon which, on arrival, I was told was not needed - but at check-out it was demanded by a different agent. Luckily I had stored it in the safe deposit box.

I still subscribe to the on-line service but have not used it again lately.