Marc,
I just returned from Egypt, and I had a currency exchange site I subscribed to,so when I got my cc statement, I measured that against the rate listed for the day, and it was the same. Also, they do not charge foreither purchases or cash advances. I have had it for 3 years and have been very happy with them. Yes, it is the day posted, but usually the difference is minimal. Also, someone I was travelling with checked every day the exchange rate, and when I checked my bill vs her calculations, the bill was always lower.
Lynn