I'm having a strange experience with Royal Oud. I originally loved it on paper strip. Sprayed it on my arm, still loved it after walking around for 30 minutes. It was, to me, like Tom Ford Oud Wood but with more substance and more character. So... I ended up buying a bottle before I left the store.
Unfortunately something strange happens to it after about 5 hours - the fragrance "falls apart" and suddenly it smells like all its ingredients separated and you have a pool of various scents on your arm - none of which are "oud" or even the signature Creed ambergris they have in all their fragrances. The best I can describe it is like putting a cup of talcum powder on the counter and dosing it with 20, 30, 40 different fragrances, all disconnected and not related to each other - a complete mess (not quite as bad as V&R Antidote, but still a big mess).
I really like the opening and the middle of Royal Oud, but after that 5 hour mark, I really really dislike it. I gave it couple more tries but had the same exact reaction after about 5 hours. Ended up giving the bottle away to a friend.