Reviews is very critical for some companies, specialy for hotels! Also restaurants, cafes and other small businesses. Tourism endustry is very big and reviews will become more important after this pandemi covid! All hotels and restaurants will be more carefully to online reputation. Hope u can focus to this side. Tripadvisor, Expedia, Booking.com, Hotels.com, Google, Facebook, Tophotels.ru, Holidaycheck.de which is the highly get comments and review for businesses. Best Regards.