The Power and Reset buttons are placed in the front part of the top of the case which smoothly transitions into the rear panel as you can see if you take a look at this system case from a side.
There are interface connectors near the buttons. It means that placing the system case on the floor is the most optimal solution. It is going to be difficult to use the connectors if the case is placed on a desk.
In the bottom part of the front panel of this “snail” there is a front air-intake grid:
The side panels serve the same purpose, too.
These are in fact two huge air inlets, but designed in a more aesthetic way. They have a snail-like stamping to match the overall design concept of the system case.
The rear panel is just what you can expect from a modern system case:
Note the protruding sides: you can press the case against a wall without fearing that the cables and connectors may get damaged.