I liked that they sent me an email almost every day with new ads to try out.
If you're looking for something like AdWords but without having to pay Google or another ad network's fees then this is worth trying! You can't really test it yourself unless you have some traffic (or know someone who does), so make sure you reach out to them before committing to using them. They had no way of giving us feedback when we were testing different ads. We needed something inexpensive and easy to get started with in order to give our users more options than just Facebook Ads and Twitter Cards.