I don't know how much of Harmonious will be/is the higher fireworks but we couldn't see any of the higher ones.
If you are in WS prior to your reservation take a look at the set up from outside. IMHO only the first row and maybe the 2nd row of tables will have a good view. I will say the food we had was among the best we had that trip and our waiter was terrific. OTOH we paid a fraction of the cost of the fix price they are charging - I think we all ate for the price of one fireworks package!
My dd and niece walked up to the rail on the advice of the waiter and even though they swished to the side out of view from anyone the folks at the front tables made them uncomfortable so they came back and sat toward the front of our table.
Not complaining - just sharing
We knew we were not going to have the best view but we were tired and hungry and done with crowds so this was a great choice for us at the time. If I had paid the price they are charging for this fireworks view and been seated at the same table I would have been very upset.