This new tech is not in general as strong as fiber woven in sheets. The claim they make is that it's "1/3 the strength of the best carbon fiber composites made

This new tech is not in general as strong as fiber woven in sheets. The claim they make is that it's "1/3 the strength of the best carbon fiber composites made today" and that to test this they measured resistance to bending "in the preferred fiber orientation" Their process lays down continuous strands along each layer but by its nature can't lay strands on the Z axis. So if you have a part that needs to be strong in every direction, this may not entirely solve your problem. It solves some of the problem, for some use cases. (It also looks like it ought to be ridiculously slow.) There's some answers at their FAQ ( https://markforged.com/faq/ https://markforged.com/faq/ ), but not as many as we might like.