My Marketo Experience

We are currently using Marketo for email communication, content management, event management, and in the process of implementing Engagement Programs to nurture our leads. We also use Marketo heavily for lead/contact analysis, to look at the success of our Marketing Campaign efforts, to monitor online advertising, and analyze the different marketing channels we use to communicate with our customers. While we do use the revenue cycle model, we are having some issues with finding the most effective approach and model.