If the point is that it's not necessary to have a static website to achieve reasonable simplicity - point taken!

From a graphical point of view, it looks a little off to me (I'm not a designer, so take with a grain of salt). The whole website is flat while the boxes have these little shadows. Too many things are centered: the menu on the left, the boxes on the right. The headers on the right side are too close to the left-hand menu.

Also I can't see where the links are pointing by hovering on them.