Mine's doing between 10-11 km/l on average. So roughly 450 to 500 on a tank.
I do drive the car quite hard, and on the highway I usually cruise with 150 km/h and around that speed the efficiency really drops a lot.
But I'm not impressed either, it's pretty much the same as my Golf V GTI, and that engine is much older.
2013 F21 125i Estoril Blue M Sport
2002 E46 320d Steel Gray M Sport
1986 E30 325i Royal Metallic Blue