I wouldn't cite the airflow as a plus on this case. It really needs a blow hole or a PCI slot fan at the top of the case to get rid of the hot air up at the top.
Not to sound dickish, but I what I meant by unique airflow design is just that - its different. Its not perfect, but it is definitely not something you see in every case. It was one of the intriguing points of the case that actually caused me to buy it.