GrillGrates is a legitimate company that specializes in producing grill grates. The company was founded in 2007 by Brad Barrett of Cartersville, GA, who was frustrated with the performance of traditional grates and decided to innovate a new design. GrillGrates are considered a premium add-on to any grill setup, enhancing heat distribution, improving searing and grill marks, and preventing flare-ups. They are highly recommended by users and reviewers alike for their ability to significantly improve the grilling experience. However, like any product, they may have some disadvantages, so it's important to research and consider these factors before making a purchase.