I am making a conceptual landscape plan where I am drawing these freehand doodle for showing hedges. It is pretty time concsuming and inaccurate to show curves like I'm doing with hand and an pencil. Even they would look neater than using mouse manually for each wobble.
I used Autodesk SketchBook Pro in the past just as a trial. I'm blown away by this trailer you shared! I'm like holy #$#@!!! This is a killer application! Never ever heard of it. Maybe I belong to architecture background that's why.