True passive cooling
You need a small Phillips screwdriver for assembly (the case is delivered completely disassembled).
I was pleasantly surprised to find the thermal paste perfectly adjusted in size (for a raspberry pi 3 model B+ but as it is soft and you press it when closing the case, I think it fits other models as well). The thermal paste is placed under the component to make contact with the bottom of the case and on top (with a metal thermal bridge: small metal cube held by the 2 pieces of self-adhesive thermal paste).
So the relief of the top of the case is not decoration: the thermal contact with the processor is very good, you can feel it when you touch it, the case is hot.
Moreover, my micro-SD card did not protrude from the case, so there was no risk of prying with it by making a false move (even if I prefer to use only a USB key as a "hard disk").