Give a List of Best Frequent Notifications to, Secret Shoppers

Hi All Can you give a Top List of the Best 4 Secret Shopper Sites I search net, not satisfied Need you to put some comments on why these are qualified, need best frequent notifications and payment Keywords like electronics, consumer, mobile, development, board, hobbyist, fanatics, new product, flexible goal, international project kickstarter USD 1 will be the starting price, Please submit right away, Raise your extra performance pay that you think I might pay