And it's an instrument like any other. It doesn't magically write lyrics and a melody for you, it doesn't mix, and it certainly doesn't sound great without a g

And it's an instrument like any other. It doesn't magically write lyrics and a melody for you, it doesn't mix, and it certainly doesn't sound great without a good ear for the different parameters and EQing. It takes a lot of skill to make music with vocaloid.