I stayed in the Dreams Tower 2153 & was able to see the fireworks w/obstructed view by a palm tree. Not a bad view. I was able to see most of the fireworks & paid for a standard room on NYE. But, I would try to get a room on a higher floor next time to be able to see more clearly.
The down side of being there is that ESPN Zone & the musicians in DTD played loudly there. I don't think it quieted down until around 11:30pm.