Have had the new car for a little more than a week and am extremely pleased so far. Great blend of luxury and sport. Car feels more substantial than expected for a mid-sized sedan. Airmatic suspension works very well and provides nice option for luxury vs sport in the same car. Interior is incredibly well done. Very comfortable and extremely well appointed with all the current gadgets. Exterior styling is sleek and sporty. Rear end styling could be better, but generally like it overall. Test drove multiple cars/makes including BMW, Lexus, Infiniti, but the Mercedes just simply felt right and IMO had the best blend of true luxury and sporty look and feel. No buyer's remorse here.
Interior styling, Pano Sunroof, LED lights, nice job with updated COMMAND system - new voice control is surprising intuitive, sound system excellent.
Turn signal lever oddly placed. No electric folding mirrors or heated steering wheel options seem odd for a car of this price/class, but very minor point.