Whilst I would support the positive comments of other reviewers about the screwless design and the case in general, it might be helpful to know that, after a relatively short period of use, I encountered an unexpected/unacceptable problem with the power button stemming from poor materials/design. As I could find no source of spare parts this created a potential 'write off' in an item I would expect to last for years.
The return 'spring' for the (nicely illuminated) power button is actually made of plastic, moulded to create a leaf spring 'cradle' that keeps the button centred in its housing. Mine simply fractured and failed. Come on designers....skimpy plastic leaves for a return spring? Yeuk!
With judicious surgery I managed to modify the cradle, and manufactured a shaped steel replacement spring, glued in place to keep the button centred and thus useable. I have to be careful to ensure that the button does not get 'cocked' or jammed (with resultant risk to the BIOS and my heart!), but as my wife actually managed to do this recently, I have sadly decided that the case will have to be consigned to the scrap heap....for the sake of 1p worth of plastic. I will dig out one of my older, less aesthetically pleasing, but reliable cases.....as tarnished beige will no doubt be coming back into fashion shortly.
Would I buy this particular case again? NO.