First Dreamliner Flight!

I'm getting stupidly excited about my first Dreamliner flight in 7 days, 21 hours and 40 minutes*. We're flying on the VS45 in 8&9A.
I've been here long enough to know that VS can and will change aircraft type for a variety of reasons but I'm after reassurance that now we're on the home straight that the chances are minimal. (I mean, just lie to me and tell me it won't change!)
Is the aircraft as great as people suggest? No fatigue, feeling refreshed and all that good stuff?
Any replies telling me that the aircraft is a wonderful experience and the type won't change are appreciated. Other replies, not so.
* at time of posting.
I've been here long enough to know that VS can and will change aircraft type for a variety of reasons but I'm after reassurance that now we're on the home straight that the chances are minimal. (I mean, just lie to me and tell me it won't change!)
Is the aircraft as great as people suggest? No fatigue, feeling refreshed and all that good stuff?
Any replies telling me that the aircraft is a wonderful experience and the type won't change are appreciated. Other replies, not so.
* at time of posting.