They used to be a good resource but now they are trash. I supposed they must have gotten desperate for money and started selling positive reviews for stuff that is absolute trash that no parent would actually want their kids to watch.
They claim their methodologies are backed by science but all of their sources are special interests, not actual unbiased science and statistical analysis.
Note the movies common sense media loves are all hated by parents and the positive reviews by kids are obviously not actually written by kids.