When comparing the two interiors (328 vs. C250) almost all of the co-workers preferred the Merc. I love the steering wheel and display in the center of the speedo.
I agree that the HVAC controls feel cheap. I also don't care for the primary colors on the COMAND screen. They are grey and tan. Also, if you don't get navigation, the screen is VERY small. It was small to the point that you almost have to get nav to make it usable.
2012 328i Base, Auto, Melbourne Red