K4 allows the writers to know if their copy is running long as it highlights overset copy. This helps cut down a bit of production back and forth to address the overset. K4 also allows copy to be easily routed to other writers or edits as questions arise and to annotate the question in the history of the article. This helps everyone see what is happening and what happened, etc.
From a design standpoint, I can easily check on the progress of copy input as well as see what the layout is looking like as the copy is input. We can also work outside of the office or check in on the documents at any time or place that has a secure internet connection. This is helpful for helping with deadlines and when writers travel.
The interface is seamless within InDesign and works like any other design process we are used to.