We just got back from our trip to the poly and we had a wonderful time. We did not see the fireworks from Ohanas but we did see them from our balcony in the hawaii building and they were wonderful there was a clear view and you could see everything. We like to go to the consierge lounge and watch from there also because the tv was set to the music and story of the fireworks and you could just roll along with the story.
Hope this helps! Have a wonderful time!