I agree with most commenter's that the design is ugly, but I disagree that it is flawed because of its mesh walls. Even with mesh sides you could still easily create air channels just like you would in any other case. The main difference here is that in a normal case there are always going to be pockets of trapped air that doesn't circulate as well. These pockets of warmer air could simply dissipate through the sides in this case which would overall keep the components cool.
You can create air channels without walls, what do you guys think a tornado is doing? You just need to have your fans placed properly which this case would allow more than any other considering it allows up to 10 additional fans, as well as rearrangement of certain components to provide a customized air channeling solution.
But the real question that needs answered is how much of a difference does this $200 ugly case do compared to normal cases? It would also be nice to let a system run for a month and compare dust buildup with other cases. In the end this article seems to be more of an advertisement than anything else...
So please, test this, and while your at it, test Antec's Skeleton case too. I'd never buy either, but I'm sure curious as to if either offer much better cooling than a "normal" designed case.