The task is to target your own advertising banners in your member's area of the website for specific groups of users (e.g., users who have indicated during registration city of residence Moscow - one banner, and those who indicated Saint-Petersburg is the other).
Looked and played around with Google Ad Manager
(Formerly DFP) functionality like the fit, but sooooo difficult to configure and manage. Is there any similar functionality in services that can solve the problem, but with a simpler user interface and a variety of additional options? Or simpler and cheaper to write my own solution?