FP+ for fireworks and parades

[jenhelgren]

Can someone fill me in on how the FP+ system works for fireworks and parades. We have not been to the parks since Disney started FP+ and I am still trying to take it all in
Are the viewing locations in really good spots?
I just cant make sense of how it would work. Does everyone with a FP+ just form a line and wait to get into the viewing area before Illuminations? If that's the case-isn't it the same thing as finding a spot that you are happy with and waiting minus the FP like we all did in the past?
How far in advance does Disney does Disney open the viewing area and is there usually a line formed well advance of that time? We plan on visiting in the Fall so after summer crowds are gone I'm not sure if it would be worth it for us or not

 

[mesaboy2]

See the green link in my signature.

 

[RllngRckBrw]

I have also been wondering these things as we prepare to book our FP+ too.