Disney's been doing big-budget stage versions of their animated movies for about twenty years - sorta in compensation after they stole the duo of Howard Ashman and Alan Menken away from Broadway when they wrote the trio of "Little Mermaid", "Beauty and the Beast" and "Aladdin". For various reasons, I've never seen any of them in a full-scale professional production (no, not even "The Lion King"), but ... well, now I have.
In the case of "Aladdin", there's an obvious challenge to be gotten over immediately - how on earth do you replace Robin Williams (not necessarily the first celebrity voice in an animated feature, but certainly the one whose involvement had the most impact on the film, to the point where the finished product includes a vast amount of his ad-libbing). There are other elements as well (two animal sidekicks along with a carpet with considerable personality), but the quicksilver-morphing Genie is the one that has to be gotten right.
Fortunately, with Michael James Scott, they've got it. He's wildly engaging and dominates the stage every moment he's on - while, no, he can't actually change shape, he talks and moves so fast while being just that damn compelling every second he's on stage that you barely notice. The highlight of the show is his eight-minute-or-so "Friend Like Me" that pulls out every stop from shoving the chorus through multiple costume changes and a tap interlude all the way to literal fireworks.
The rest of the show surrounding it doesn't always keep up to the same level. Our two romantic leads, Ainsley Melman and Hiba Elchikhe, are both a little bland, and while an understudying Alex-Gibson Giorgio and a regular-cast Aljin Abella do some good sniveling conspiring and Aladdin's trio-of-friends (who have snuck back in from early drafts of the movie) are a diverting trio of Adam-Jon Fiorentino, Troy Sussman and Robert Tripolino.
The score has all the original movie songs plus two cut Ashman/Menken numbers ( the ballad-ish "Proud of your Boy" which is okay but gets an unnecessary two reprises, and the rollicking "High Adventure" for Aladdin's buddies, which is far more amusing), and a couple more songs by Menken and Chad Beugelin, who also wrote the script - most of which serve only to pad out time. It's a very glitzy show with fabulous costumes, grand sets and some snappy choreography, but it doesn't quite sustain continuous joy the whole way through - it's more stop-starty than perhaps it should be.
With expectations adjusted downwards there's a fair bit to enjoy in this, but it's not top-tier Disney - though the middle of their pack is still pretty solid.