I received the free 1000 coins and tried it with Instagram followers. The followers look real, or maybe real, however upon checking some of the followers' accounts, most of it has a huge gap in the followers to following ratio. I just hope that the accounts won't get banned or else there will be drops in the number of likes.
The system is very newbie-friendly since for every X number of followers, you are required to get X number of likes to random pics in your account which is really good for a more natural activity.
Overall, I was impressed with it and will definitely use it in my future endeavors.