I purchased my C230 in December after having researched and test driven the BMW 325i, Honda Accord EX, and Nissan Altima. After driving the C230, there was no more need for comparison.
The car has a solid build coupled with great looks. The supercharger makes it fast and fun to drive. I opted for the 6-speed, wheel package, and CD player. It still came in under $27K.
The true joy of life is the trip. Mercedes C230 makes it more enjoyable.