Write an evaluation essay requires that you take a product you are familiar with through experience and, as an expert with this type of product, evaluate it for an audience that either does not have experience with this specific product or is not as much of an expert you are.
To be clear, this isn’t a compilation like so many online documents that claim to be evaluations (“top ten spatulas” lists that are just the writer reading other people’s evaluations aren’t really evaluations, and they are awfully close to plagiarism).
A good, trustworthy evaluation requires that the writer be confident in their ability to judge the subject, do their research, and support it thoughtfully. Also requires that the writer has experience in the category but is impartial enough to avoid bias.