However, the holes on the underside of impossible to ventilate properly (Pi extends over the entire surface of the case) and there is no vent on top (because of the nice logo)
Heatsinks help a little, but will not be sufficient for intensive use (tested on xbian for 1:30, it was starting to really up too)
I only recommend for little greedy resource uses (box automation for example), or to the dremel artists that will make air above without degrading the beauty of this case.