I like that it is easy to use, has many different options for targeting ads in order not only be able reach those who are interested but also have them actually click through our ad! It's very cheap so there isn't much risk involved with trying out this service until you see how effective they really can get results from their advertising efforts (which we've been pleased about). The fact some people don’t know what opt-ins mean or think its spammy when sending emails makes me nervous because if someone doesn;' t want my product/service then why would i send an email?