The Mercedes-Benz GLB-Class is being reviewed by various outlets, with some focusing on the 2020 model and others discussing later model years, including 2021, 2026, and 2027. The reviews cover aspects such as pricing, specs, and features, with some outlets providing expert insights and photos. The model years and focus of the reviews vary across different publications, indicating that the vehicle has been or will be available in multiple years with potentially updated features.