Its special strings allow for sweeter and deeper sounds (one octave lower than a normal bass, like the contrabass).
Due to its dimensions, it really lends itself to being used by young people, easing the study of the bass, from which they are usually excluded due to its large figure.
Being semi-acoustic, it is playable even without an amp. This translate to an easier time studying and playing the instrument.
The fifth string together with the fourth, allow to easily carry sessions with the FaRe ConSonanza method.