Each and every plane type had and has problems during development
The new turboprop engines are the most powerful in the world, a lot of brand-new technology went into it, and it seems the problems have already been found, but they have not updated each plane yet. Then: software. Not helpful to have an auto switch-off of engines due to a manufacturing error of course, but not a design fault.
Much less noisy than a jet-powered AC, more than 10,000 hp from each (!)engine, full stop in ten seconds after touching ground, able to land in the desert without runway.
Not too bad i think. If they get the trouble sorted out..