The advantages of SpyWords are that it displays all queries and ads in contextual advertising. There is also the ability to find out the cost per click and the number of impressions in Google Adwords and Yandex Direct for selected keywords, which allows for quickly gathering a database of key phrases for contextual advertising. The drawbacks are that the service does not show ads in real time. Overall, it is a good and reliable tool that provides all the necessary information and facilitates quick ad setup, as well as competitor and market analysis in general.