The last time we reserved for this......we waited and waited......tkinking our reservation time we picked would let us have a seat later in our meal to watch.....well, lo and behold.....everyone else in the restaurant had the same idea.....some alot earlier than us...and weren't leaving though totally done with their meals....
We were told, we'd probably be seated after the fireworks when the guests finally left....that was like and hour plus after our ADR time......we told them to shove it........and we won't go back for how it came out and the meal is mediocre at best......good luck.....though you may have an ADR, it's not a guaranteed seating time....it's the next available table in order so you can have a long long wait....it's why we don't do dining plans with ADR's......