The viewing window allows a good view of the hardware in the computer. In my case: A Alpenföhn Brocken (yes, it fits to 0.5 cm purely ;-)), and a Alpenföhn Ötzi. By lighting one also sees the power supply fan quite well. This looks a bit like an aquarium, within the meaning of: The home server is an eye-catcher, in the hallway is a good machine that will serve their effect as central control unit of the network.
As for the scope of the accessories, the processing and the usability of the case, I can only connect other reviews! It was really fun to build the server, and everything is well thought out. The three built-in fans run really good and quiet, everything is stable, and the supplied cables, screws, adhesives, etc. laundry. Very nice, I also found that the holes for the installation of the MBs are numbered and marked, and we know directly and without trying, which spacers are needed.
Without bringing someone on false ideas: Had given me this body to the test and asked me about it, what price I would appreciate - I could easily fit three times estimated.
Anyone who is not sure of low cost housing and real genius he shall choose: Just take this one. It is a really good choice!