Others don't care for this film because it's simply too light. There is no dramatic tension, pretty much no sympathetic characters, and the moral is as obvious as the nose on a llama's face.
Nevertheless, for my money, this is the most entertaining of Disney (non-Pixar) animated films.
Perhaps the voice-over narration is irritating, but if we get into the film, the irritating nature of David Spade is part of the fun, and how David Spade's character gets irritated at the David Spade narrator, tells him to "go away" and the narrator is silent throughout the rest of the film is not only brilliant, but a revenge on voice-over narration in all films.
How I love this film! I count them by quotes that my family throw at each other almost every day:
"Point three: Look what I can do." "What does that have to do with..." "No, wait, he's got a point."
"Why do we even HAVE that lever?"
"Bring it on."
"It's not the first time I've been thrown out of a window, and it won't be the last."
"Oh. I feel it."
"Is that MY voice?"
Okay, I won't bore you with the silly quotes. Enough to say that this movie works for us. Yes, it's only entertainment. It entertains us. And that's what a movie is really all about, right?