I am not a ship designer, and aside from some college courses in fluid dynamics - I am no expert.
But, this ship looks like an awful ship to have on water that is going to be rougher than a small lake - and even then, only with mild winds.
With straight sides, the wind will push against the wall, and drive this craft to the side. The side walls are nearly perpendicular to the water, so waves will be absorbed, instead of deflected - causing the craft to rock. The prow of the ship is perpendicular to the water, thus it will exert no downward force into a wave - but rather ride up and over the wave.
This may be beautiful on the inside; but I have no desire to be on this craft with medium waves, or a wind exceeding 20 mph.
It does look more like a floating mausoleum rather than anything seaworthy. But this was clearly a vanity project for Jobs and I’m sure the yard was happy to take his money.