The method is interesting because it prints 3D curves, not 2D layers. This is awesome because 3D lines can actually follow stress lines of the shape.

It allows to print on any surface, even on walls and ceilings.

Moreover, the extrusion process is not affected by gravity as in other method that need gravity to adhere layers and thus it can be used even in space.

Even though the prototype shown on the website is quite far from immediate practical application, the potential seems to be very promising.