The nice thing about Rose and Crown is that they will let you sit down order and eat your entree, than go out to the balcony and watch fireworks and comeback and eat your dessert.
Honestly, the chances of you getting a table with a good view of the fireworks is very slim. So what you do is go take your table wherever it may be tell your waitstaff you want to watch illuminations and they will take you out to the patio where each waiter/waitress have table reserved for you. Worked perfectly for us. Illuminations is 13 min long so it is a good system. Don't worry about trying to get a table where you can see Illuminations from there as the view will be much better down on the patio anyway.
B.