Darkflash cases "look" nice when you see the marketing materials, but the reality is that they are extremely cheap quality, with super thin flimsy panels, virtually zero room for any kind of cable management on the backside of the motherboard tray compartment when you take the right hand panel off and if you look through reviews of these cases by people on Amazon (Which is not normally a place, nor Newegg, that I recommend seeking reviews from) there is a common theme you will find in a lot of the 3 star or lower reviews which is that there are problems with the front mini boards and USB ports. This is very common, typical in fact, of cheap cases.
The fact is, these are more like swap meet products. They are like cases you would find at any semi-large to large city swap meet if they carried PC hardware. When it comes to cases, it's a truth that for the most part you get what you pay for.