After having the night to think about it, here are my thoughts.
My general feeling is that "Epcot Forever" is kind of like the "Philharmagic" of fireworks shows. It's really just a mish-mosh of different songs that you might know, except for the majority of people the songs are really obscure. I don't like Philharmagic as a concept because it's just "hey here's a bunch of popular songs we threw together with a really poor excuse for a story". Now, I happened to grow up with a lot of the early Epcot songs, so those bits worked for me. I do wish that the clips were longer and agree with most that they were all too short.
I thought the laser work was amazing. For me there was finally a moment that finally felt almost as grand as this moment-that-disappeared-when-the-new-lasers-arrived:
https://forums.wdwmagic.com/attachments/image-jpeg.404711/ (stolen from the illuminations thread)
There was some very heavy laser work on the left periphery (from showcase plaza) at the beginning, but that dropped off.
I thought the variety of music styles was a nice change of pace. Fun to be free felt manic in a good way and Soarin felt pleasant and relaxing. The kites were really really good, especially when the fireworks were activated on the multi-kites. It's the linking of the music of these sequences that is problematic and jarring. As for "veggie veggie fruit fruit", I was waiting for "cha cha cha" and it wasn't coming, then the silent pause happened. And just as I finally said "cha cha cha", the soundtrack said it. Lucky timing.
The spinning pyrotechnics were also neat, and there was a segment with "double-burst" (?) large shells that had more of a sequence count than I was expecting.
A lot of other folks have touched on things they liked, but one of my favorite parts that also got good crowd reaction that I don't think was mentioned yet was
the perimeter shots going off in a circle sequence around the lagoon. That was AWESOME. However, I worry that on windy nights, the loss of the perimeters and possibly kites could really kill the show.
I was never a fan of the globe moving out for RoE as well as it showing progress over time once it got to the center of the lagoon. I understand its point in the story of the show, but I always felt it took way too long and was a snooze-fest for those minutes. Thankfully (IMO) there isn't anything quite like that in this show. There is a quiet section just before the kites IIRC, but it is short, and the kites provide great visuals, even if there isn't anything else happening.
What about a whole new world? It felt way off, and did remove me from the "zone" I was in. I wish it wasn't there, but I suspect we'll get used to it. The whole ending felt a little weird from a musical build-up perspective. It was hard at first to say "hey this is the end", but then it became clear. I thought the very-ending pyrotechnics made a better impact than RoE, but it didn't definitely have anything to compare to the pre-final sequence from RoE with all the white shells.
Do I want to see it again? Yes, just because I think the music has nostalgia, the variety of fireworks and "lasering" is quite good, the kites are great, and there is a good variety of action. Do I prefer it over RoE, no, but IMO its just a slight step down overall. What it lacks in story, it makes up for in visuals. For me.