On July 4, we use our FP+ at Epcot. Using FP+ at AK is a waste when your FP+ times are better spent at Epcot. We did Illuminations FP+ this year and will do it again in 2017 but be aware if you book it, the line will start forming several hours before fireworks and will get very LONG. Our ADR sat us an hour after time and then it was a slow service meal, so we were behind the crowd getting in line and ended up standing at the back of China and then line stretched well back behind us. By the time we made it into the FP+ viewing area, it was getting crowded in there but we found a good spot anyway and had a straight on view. If getting a straight on view of the show isn't important to you, skip the FP+ for that and use it for Soarin or TT instead. It's really the worst use of a Tier 1 FP unless the view will be ruined for you if it isn't head on. It is important to my dad, who won't bother watching if it isn't a head on view, so we always make it a priority to get the FP+ for Illuminations. Otherwise, I'd rather just stake out a spot a few hours early around the world showcase lagoon like we did in 2015.