The user interface is very easy to navigate through. We have been able to create targeted email communication programs tailored specifically around our business needs. Our team has had limited training but we are working closely together so it's not much issue at this stage. I would recommend spending some time getting used to how things work before trying anything else out! As mentioned above - no issues thus far from integrating spend go into my CRM software (Salesforce). This enables me to send emails directly from within Salesforce using predefined templates which saves lots of manual effort and ensures consistency across messages sent between different departments/users.