I found it terrible.
It left out 90% of all motorways in Europe, the interchanges are terrible poor detailed and not authentic, the traffic is not realistic/way too light, roads are undetailed too and not authentic, you have 3 lanes in the game where in reality at that bit there may be 6 lanes per direction. There are no collector/feeder lanes at places where there are in reality, and it's just terribly worked out.
Especially the Benelux area, Paris area and Ruhr in Germany are a disgrace ingame, here's a map of the actual motorways, all the orange roads are motorways except some, say 3 or 4 small bits of road ( which are simply dual carriageways with 2 driving lanes and an emergency lane ) :
That means they left out more than 90% of the major roads

.
Now I understand why they can't make everything perfect, but they even left out the most important trucking routes aka The ports of Hamburg, Rotterdam, Antwerpen, Duikerken and Le Havre, pretty much all important places where trucks come from/travel to and important industrial area's like the Ruhr in Germany...