The ability to create custom forms that can be used by multiple clients is really useful, having it in one place allows for easy data entry - no need to switch between programs! Sometimes my computer crashes or freezes up so I have issues with logging into CPA 360 sometimes but they are quick to respond when notified of problem.
Also would like more tutorials available online. It's hard as an agency owner who also does some client work to know what you're missing out on if you don't take advantage of all their products. As an account manager i was able to use CPM form builder tool to build many different types of surveys including ones for our referral partners.