Have you ever searched for a restaurant online? Would you say your more likely to visit the restaurant that has the most positive reviews? All things being equal. They have a good menu. The appearance of everything is ok. It is a convenient location. I think we would agree that if you have to choose you would go with the restaurant with the most reviews. These restaurants probably have 1000′s of customers visit them. However the review sites may have at most 20 reviews. Can you imagine if you where looking at reviews and the average was 5-15 reviews and then one with 200. WOW I think I would have to visit the place with 200 reviews.
To achieve something like this the restaurant would have to focus on encouraging happy customers to leave reviews. With the high use of smart phones today there is a good chance customers could leave a review while enjoying a cup of complimentary coffee for doing so.
So what about your business. Have you ever looked to see how many reviews you have? Do you care? Should you care? If you had more reviews than your competitors and they where good reviews do you think it would affect your business? I think it would be worth a try.