I'm not sure why so many people are voting this so negatively. And honestly a lot of the reviews seem like the users didn't actually watch the movie. Let's go through the list of complaints from users... No spoilers.
Take this movie for what it is. A cute, funny, wholesome kids movie.
- animation/cgi = I thought it was perfect, cute and great and can even compete with some other big movies with this art style. Great colors, lines, borders, reflections, particles, hair... There's literally nothing to complain about the cgi/animation.
- characters/back story/development = This is a relatively short movie. So cramming in the entire back story, characters and over all feel/direction of the movie can be tough. But I think it nailed it. Again, it's cute. The characters are all likeable and enjoyable. They all grow and develop. And for the person claiming them oozing the troggs is killing them? Did you even watch the movie? And there's some great jokes and the over all comedic feel and timing is pretty spot on!
- music = great choices. My kids literally got up and danced with every song. They're 6 and 3.
Take this movie for what it is. A cute, funny, wholesome kids movie.