As mentioned before, the puppetry is quite good and you may need to see it a few times before you can fully figure it all out. Ariel tends to be portrayed well although we hear stories of a "bad Ariel" so depending on the talent level of your show that will dictate how the show goes. The show is short and summarizes a great deal of the second half of the film in a few minutes.

In terms of comparing this to the Beauty and the Beast attraction a couple of hundred feet away on Sunset Boulevard, they're both very good although the air conditioned theater and great puppetry give Voyage of the Little Mermaid a distinct advantage. Both have high production values and are worth seeing.

The only real problem is overcrowding. Due to its location in a high congestion area, shortly after the first or second showing, there's little chance of getting into this without arriving ridiculously early. My advice is to FASTPASS it when you swing by the area for the first time and go see it when the time comes. This show, unlike other shows, does have areas with better views. Your best bet is to be "courteous" and let others by and then follow them in so you'll be seated in the middle of the row.