The ability to create different versions for each audience segment which enables us to focus our resources in areas where we need improvement most without wasting time or money developing the same version multiple times! - Still working out some kinks but so far it's been great.
Would like more customization options (e.g., logo colors) as well as an option to select from pre-built templates with little modification needed other than adding text/images if desired. We've seen significant improvements since using HippoCAD over traditional methods such as creating logos by hand.