The basic internal layout of the Moonlight is pretty simple. You have the hard drive bay located in front of a 120 mm intake fan and two 3.5" external bays on top of that. The external 3.5" bays can also be used to mount some hard drives in, but that isn't recommended since the airflow over that part of the front is close to zero.
The lock mechanism has three different settings. 1: Pull tab away from fixed position, 2: Pull up pin mechanism from drive bay, 3: Insert drive and push down pin mechanism and lock the tab in place. This system is one of the best I have ever seen in a case. It's easy to use and makes it fairly easy to get drives in and out of the case. Compared to the system employed by GIGABYTE this is a real treat and is definitely one of the best drive lock mechanisms on the market today. All of the drive bays in this chassis feature the same ingenious mounting system.
The side of the case features a NOX XTREME logo. The finish of this particular case isn't that good compared to offerings in the same class by GIGABYTE or Antec for that matter. As you can see on the right picture the screws that fix the acrylic window in place have been over tightened from the factory cracking the acrylic plate. These cracks are likely to spread out through the acrylic plate messing up the window. A major production flaw like that is something you wouldn't expect on an 80€ case like the Moonlight.
All of the external drive bays use the same lock mechanism for easy installation of both 3.5" and 5.25" drives.
This case actually has a removable motherboard tray, but it isn't that much of a time saver because the PCI bracket is fixed to the case and not to the motherboard tray. The quickest way to mount all of your hardware inside this case is probably to assemble the motherboard with all the connectors outside the case and then fix the motherboard in place. After you are done with that you can easily hook up all of the drives due to the spacious interior.
What surprised me a bit was that the Moonlight has some very tall case feet. They are approximately 2 cm high and raise the case above the floor so much that it's easily noticeable. When placing this case on my desk you can actually see the grey feet from quite a distance away.