Having been to Fleur de Lys in California, I was quite anxious to try Fleur in Vegas.  I say that most of the food and service was good but the most unique and memorable item was the Kobe beef foie gras truffle hamburger.  I have a handful of unforgettable items that I have eaten and this is one of them.  However, it was quite expensive and if we didn't have a gift certificate we probably wouldn't have ordered it.