Firstly, it’s a way to increase the volume inside the guitar which give a little louder and deeper sound. Secondly, it’s super ergonomic. The design angles the guitar against your body so that when you strum, the movement of your arm is more ergonomic and causes less fatigue on your shoulder. It’s also a bit easier to play barre chords as it causes the fretboard to be more naturally angled – which helps gravity add a little extra pressure with your barred finger on the fretboard – the weight of your arm naturally adds more force against the strings. For guitarists with shoulder issues or injuries, this asymmetrical design makes guitar playing much more comfortable.