One of Capo's greatest strengths is its movement controls. While learning a song, it is essential that you can jump to important parts, and go back to repeat what you just heard.
In conjunction with regions, Capo's movement controls become even more powerful, as you can quickly jump to an exact point that you are interested in hearing again.
By utilizing the regions you set in a song, you can quickly move to the important points of the song while you're learning. For example, if you're trying to learn a solo during the bridge of a song, you can jump between the regions until you get to the bridge region you're interested in.
If you get in the habit of using generic regions to highlight less important bits of the song, or sub-sections of more complex parts, the higher-level structure of the song may become difficult to jump around. Capo allows you to jump between high-level structure of the song using a modified keystroke.