The Raijintek Thetis clocks in at around 100 euros, which is fine considering it utilizes an aluminum shell and glass side panels - with the latter material being increasingly more common across a wide range of price segments. That said, its price tag is certainly adequate for its material mix, but - just to get it out of the way - the metal mesh cover on top is a sore spot. A more elegant solution would have been removable 120 mm dust filters to keep dirt out and a metal mesh cover that is held in place by magnets, for example.
That said, there is not much else wrong with the Thetis. It is of a compact size and can hold a full ATX board and PSU, but also allows for quite the long GPUs, especially if you end up using a compact PSU like I did in this review. To top it all off, you are able to install a 240 mm radiator into the ceiling, thus giving you all the tools you need to build a potent but compact full ATX system.
In terms of storage, the Thetis should cover all but the most extreme scenarios with its total of four possible drive placements. Even if you fill the chassis to the rim with hardware, things should end up looking quite clean inside due to some well-placed holes in the motherboard tray - with the exception of the somewhat useless opening around the CPU socket. You just have to get creative with securing the cables - not only because Raijintek only includes two zip ties, but also because there are a limited number of hooks to secure any cables to.
That said, the Thetis has one big (or should I say small?) thing going for it: its size. Those looking for a compact case for a board of this size will be hard pressed to find something similar - especially if an aluminum exterior is your thing.