I have tested my pages and keywords with customer reviews. Results is here keyword is "cheap flights new york to nairobi" Before reviews my rank on on 4 page position 8 on page 4 google. But after 2 days we have set reviews and one of customer write review on page after that my keyword position boost. now its on 2nd page . review on page really help.
Just to make sure, you are not logged on on your Google account when you checked this? Otherwise you might get personal results.
Google Places for a business is vital and has huge benefits, Its well worth encouraging customers to leave a review on Google Places (a 5 star one preferably) This not only helps your rankings, but is also very helpful to new customers.