Have had the Cobalt since the beginning of August. Great car with some exceptions. I have had some major/minor glitches. My back window shattered out of no where, my sunroof switch cover fell off and has not been replaced yet, my car is rattling, and my emergency break light seems to come on at random when driving.
The Pioneer sound system is great, the ride is smooth. Quiet ride as well.
Obvious kinks, still in it's first 6 months of ownership.