I like the way that we can create inidvidual workspace for multiple teams or projects. We also have the flexibility to build web apps within each workflow.
Dashboards and reporting feature is one of the best that I've experienced.
Fibery has a host of other features that comes in handy.
Excellent customer service, smooth interface, frequent updates, great documentation. Very enjoyable experience to build out the internal systems our organization needs with lots of flexibility. The few minor bugs I've encountered were acknolwedged and fixed very quickly, usually within a day!