I also use another case from Fractal Design - there is the same problem with the screws out of the box. It turned out to unscrew them (including knurled screws) only with a small gas wrench and a screwdriver . But when you coped with the screws - the case becomes candy =) Has some pros Convenient, practical. Fits 6 discs. If you try, you can shove 2 more. Quiet enough. Doesn't rattle or hum. I had all the fans spinning at a minimum, although the small ones started with a delay. I did not notice a difference in noise when switching the positions of the reobas. The temperature regime for the components is excellent. I use it as a server. Got cons: The screws are very tight. It feels like they cut a thread. Of the 3 removable baskets for disks, I could not unscrew one - I broke a screwdriver and grinded off the edges on a small screw. As a result, the disks in it put "raskoryachilsya."