Funny you mention this car, as I recently drove a few "high end" C Class cars including the AMG C32 and also the AMG C55 as I am in the market for a fun but yet quick 4door car.
I loved both cars and the 349hp in the Supercharged C32 left me very impressed. Price used as you indicated is very appealing. From the Benz forums that I am a member of reliability has been very good on these cars too.
Not sure if you wrench at home, but the C32 is very tightly packaged in the engine bay, so working on, definitely requires patience and decent aptitude.
If the price, color and condition are spot on, go for it.
Yasin