Step 4. Verify the imported data is correct

Press "Go to page" and you'll see your report tab. Click on the "Reports" and then "Stats". 
What to look for: how many reviews received, review rating etc, any unexpected time gaps. Compare with the data from sources you use now to be sure the loaded data is correct.

In "Data range" choose the days you decided to import. In "Review type" you can choose between service or product, depends which data you want to explore now. Then press "Get statistics".