wow cant anyone just enjoy something for the fun of it anymore? I enjoy going on it. Yea its stupid, but who cares. God you people with such strong criticisms for rides are just like people who pick apart every little aspect of a movie and talk how bad it was and how it didnt live up to their standards. I like it, and to the person who didnt like monster's inc laugh floor, same thing, it is just a fun show to go see, even if you didnt think it was that funny. Just because these arent Walt's classics like the tiki birds and potc, doesnt mean its bad. Now, i personally dont care for the original tiki birds, which i did at disneyland since it aint at MK anymore because i think the whole thing is just plain corny, but i still think it is fun to do and im not about to bash it and call it the worst thing ever. Disney is changing, people are changing, and if you dont like the way things are changing, you just gotta deal with it, stop complaining, and move on.
Now to the original question, it is no where near as intense as alien encounter, but there are points where there is loud noises and darkness, which may frighten little kids. Try it for yourself first, and then decide whether or not your kids will be afraid, since you know them best. There most likely wont be much of a wait unless the park is crowded.