The ability for us to use our own metrics as well as those from other third party sources (eMarketer, Google etc.) in order to create custom reports that we can easily share with clients is one of my favorite features about this product and platform.
Some users may find it difficult at first using all three platforms but once they get used to them it's really easy! I think that most people will be able to figure everything out fairly quickly though if you have some training or help getting started initially. We are looking into creating more visual content within Acuity instead of just text/data since there isn't much available now. This would allow both internal employees and external partners to produce their own materials without having to go through outside vendors which helps cut down time significantly while also maintaining quality control over what gets produced.