Bought the car from the distribution center. Came to me with no squeaks, rattles, etc. Has so far been a flawless experience contrasted with my 2005 and 2002 CLK cabriolets, which were both problem-prone.
Stereo. Did not get $1,500 upgrade. The standard audio is excellent. Fit and finish, especially the textured plastics used. Interior design simplicity aesthetically pleasing. Like Sirius radio as well. Love folding hardtop. Down or up lines are great. Don't know how engineers and designers did that.
So far, nothing. Were I in my 20's I would want more horsepower, I suppose, but the C70 has enough and I get almost 30 mph on highway and slightly less than 20 around town. Could not be more pleased.