I haven't read the reviews thoroughly (I've had some personal family things going on that have distracted me when I need the distractions from that), but from what I read here and from what I saw on the stage 2 weeks ago, I agree that a lot of the problems are indeed fixable. The climax feels extremely rushed. Jasmine needs more, perhaps even closer to what is in the movie, to feel less of a throwaway character. Besty, Adam is fantastic as Aladdin. His age doesn't really bother me. Although I think the other problems make you forget.
My biggest problem is the friends. I think they are given TOO much in the show, half of it completely unnecessary. I walked out feeling like it wasn't a show about Aladdin and Jasmine. There needs to be a little more weight on them.
Dance numbers do need to be trimmed, mainly the opening number. The finale, as stated, feels rushed and ineffective, watching Jafar go crazy as everyone else just stands around, not reacting. The book needs cuts and sprucing up. The actors need a jolt so you can feel more energy.
I understand that they are trying to stick closer to the ORIGINAL concept of the movie, focusing more on "adventure" than love, but look at how the movie turned out. It's fantastic. Maybe they should lean a little more toward it.
Contrary to how this sounds, a lot of the how I DID enjoy. The visuals are beautiful and most of the orchestrations work (although "A Whole New World" needs a little punching up). But a lot of the problems seem, as a spectator, so easy to fix. But as someone said a little earlier in this thread: we probably won't see the changes come in. That's what will hurt it.
::bust a move::