Very good overview of different running campaigns and costs that are made. Lots of reports can be downloaded as well. The mix between automatic and manual ad campaigns works great too. Review collected by and hosted on G2.com.

Costs can go up really quickly, which makes that there is a constant need to monitor or use the maximum ad spent limit. Those limits are tricky. They can be refilled automatically, which defeats the purpose of the limits. Review collected by and hosted on G2.com.