As digital marketers, we don’t like to promote one service above other’s because the most effective campaigns will often use multiple forms of advertising.
That being said, retargeting is proven to be one of the most effective and efficient forms of advertising because it specifically targets people who are interested. However, it doesn’t do much for people who don’t know about your service, and how they can benefit from your services. In our opinion, re-targeting is one of the most powerful marketing tools you can choose from, but it shouldn’t be used alone.