so far so good
By Warren on
2009 Chevrolet Impala SS 4dr Sedan (5.3L 8cyl 4A)
Even though I just bought an SS model I found it to be very comfortable and quiet during driving. Gas mileage appears to be fair for now and my only hang-up would be the call for 91 octane for the best mileage/performance. On-Star system is tops in my book and the entire radio system is more than enough for the average adult. General quality is MUCH improved from these guys and no door rattling of any kind.