According to touring plans, there are 9 rooms that are standard view King bed that have a chance of seeing the fireworks (floors 4 and 6).
However, those rooms also overlook a service area. We've stayed there once and while seeing the tops of the fireworks was great, the loud trucks beeping at 5-6am was not so great...
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We had the fireworks view last summer - that was great, we saw the testing a couple days before they restarted the fireworks.
Then saw them in the park too!
This summer we have a standard view reserved, if I am counting correctly on touring plans, there are only 21 standard rooms,
scanning through the photos they have, a couple look like they have a partial fireworks view, maybe...
depending on how long ago the pics were - and how much taller the trees are now...
Kind of like when they started the fireworks dessert party about 15 years ago, or so,
and the view from tomorrowland terrace was good,
now the trees around the hub are so big, you miss half the castle projections.