It's cute, it's stylish, and it's absolutely not fanless-friendly. This
Jonsbo C2 offers no convection whatsoever. Too bad since the 35W
i7-8700T and the mighty
Le Grand macho RT CPU cooler are a great combo, and do work together in passive mode.
As far as mini cases are concerned,
Realan's E-D5 and
Cooler Master's Elite 110 are not perfect but do offer some semblance of convection.