Elite Bastards posted a review on the Cooler Master Centurion 590 system chassis
The first thing of note here is that the Centurion 590 doesn't feature a removable motherboard tray - Although the chassis still has a fair amount of space to work in, its smaller overall size compared to a case such as the Cosmos S means that things are inevitably a little more cramped, which is where that removable tray would have come in handy.Cooler Master Centurion 590 system chassis review
As per the Cosmos, the power supply in this chassis is installed at the bottom of the case - However, unlike its big brother, there's no dust filter provided where the PSU fan is designed to exhaust from the bottom of the chassis, leaving it in danger of picking up all kinds of dirt and the like. Definitely one to watch when it comes to maintaining your system, and it's another potentially large omission to my mind.