The Deepcool Quadstellar is not a sensible chassis at all. It is big, heavy, and quite specific when it comes to compatibility for cooling. But the case is not meant to be sensible. It is meant to be stellar (get what I did there?).
Deepcool has managed to push the envelope with the Gamer Storm brand in recent years, from the Tristellar, integrated liquid cooling, and interesting use of materials with a very competitive price point. The Quadstellar is no exception as you will once again find that uncompromising dedication to design and use of materials we have come to expect from the brand. However, even though it features that unique X-shape, Deepcool has managed to pack the enclosure with some really cool features to make it stand out even more.
While there is the ample use of steel and glass, that built-in, app-controlled and WiFi-equipped controller board is one of a kind. You are not only able to adjust fan speed or colors of the addressable RGB elements, but can also track temperatures or open/close the four cooling flaps in front. So, even just from an outside perspective, the Quadstellar is jaw-dropping.
On the inside, you are still able to pack all that potent hardware, including up to an E-ATX board, long GPU, plenty of liquid cooling, and a boat load of hard drives, into the chassis. The only downsides are the compact requirements for those wanting to use air-cooling and somewhat time consuming assembly of the system. Also, for the price tag, the use of plastic for the flaps at the front is not the best choice, and unfortunately, the electric motors to open them up don't really sound sexy.
As stated at the beginning of the conclusion: the Quadstellar is by no means a sensible case. Consider this the Hummer of cases; big, menacing, powerful, with some cool gimmicks and unique features married with heavy duty quality. Anyone buying the chassis will be doing so for its crazy looks first to then happily figure out that there are many mounting possibilities and room enough for all types of hardware—the Quadstellar is not only for show, but also works surprisingly well.