It's too early to tell. I am very confident though that this car is going to receive excellent ratings from owners. Mercedes did their homework and so much more when they developed this car such as testing her for close to 4 million kilometers etc.
I've driven the new C-Class and the interior for example is well made and feels solid. The whole car in fact feels solid - like a Benz should.
Again, I think it'll do very well. And if it doesn't, then we know
Consumer Reports is full of crap.
Welcome to the forums by the way! 