Owned for about 6 months now. love to drive it, especially with the top down. bought with 180,000 miles on it, but it runs great and had it inspected privately; everything is in tip top shape for how many miles are on it. those Germans know how to make a quality car. the top squeaks a little when going over bumps - to be expected, minimal road noise for a convertible. tiptronic transmission shifts smoothly. plenty of interior features, very luxurious. if you buy a mbz, you need to take it to a dealership for service, or at least make sure you use strictly mbz parts, and approved fluids.
The hard top convertible was my favorite feature, along with the supercharger. great trunk space, even with top down. also, i like how they moved the marker lights from the fenders to the side mirrors. heated seats are nice for cold weather.
Cup holders, just get rid of them. you don't need to be drinking in this car.