We have more than 70 million property reviews, and they're all from real, verified guests. How does it work? 1 It starts with a booking The only way to leave a review is to first make a booking. That's how we know our reviews come from real guests who have stayed at the property. 2 Followed by a trip When guests stay at the property, they check out how quiet the room is, how friendly the staff is, and more. 3 And finally, a review After their trip, guests tell us about their stay. We check for naughty words and verify the authenticity of all guest reviews before adding them to our site.