Kompressor in the MB world is a vehicle with a supercharger. So it could mean a good thing, depends on what you want.
More power than a comparable naturally-aspirated model; probably more cost to maintain, due to more fuel consumption and mechanical failure points.
More torque, more horsepower, and better gas mileage if you just drive the car like it doesn't exist. If you like to go fast, then this will only tease you for about a few days.
Looking for a Used C-Class in your area?
CarGurus has 28,327 nationwide C-Class listings starting at $2,001.
Get More Money for Your CarBe seen by 20 million shoppers. Create Your Free Listing
Search Mercedes-Benz C-Class Questions
Mercedes-Benz C-Class Experts