Very nice. I like it more than the current S class. Sharp creases and edges, not generally associated with MB, are quite expressive. Since E class is where MB earns its living, they must have done an enormous amount of market research before finalizing this design; and I will say that it shows.
It seems that mainstream mindset regarding automotive appeal is shifting towards sharper and bolder forms; look at the new 7 series, A7, A8, Acura TL, CTS.