Most guitarists learn chord shapes early and never fully connect those shapes to the notes they're playing. That's fine for playing worship songs — but once you want to improvise, create fills, or communicate with other musicians, you need to know where the notes are on the neck. "Start on the C, move to the D" only makes sense if you can actually find them.
The highlight feature is the one we use most. Pick a note — say G — and see every place it lives on the neck across all six strings. Suddenly you stop thinking of the fretboard as a collection of shapes and start seeing it as a map of notes. That shift makes soloing, building chord inversions, and reading Nashville charts dramatically easier.
For worship guitarists specifically, knowing where your root notes are is crucial for stage communication. Your worship leader might say "we're going from the G to the Am" and you need to find smooth transitions, not just jump between chord shapes. Knowing your neck makes you a more musical and responsive player.