I think people are missing the point of the LED DRLs. They require less power to operate than halogens, and last practically forever. The LEDs are here to stay. I think they are tastefully done on the 300, as opposed to than the E class, for example, which is an ugly afterthought. Example:
I'm not sure what people don't like about the new 300. The appearance is cleaner, interior is top notch, and the drivetrain is insane. It seems like a world class car. I suppose biases and opinions on the styling are subjective though.