Original owner of a 2008 4cylinder sedan. Happy owner. No problems, mostly always city get 23-24 consistently. Just got the official notice on 2 recalls. The first I read about, is a software fix to stop you from damaging the transmission, specifically a bearing, that can happen when rocking the car from being stuck in snow. And the 2nd, another software fix, for fuel injection/timing curve to get better gas mileage. Maybe what I need to pick up those couple mpg, I always felt I'm missing.
My brother can get better gas mileage in a 2006 Camry V6, which is slightly puzzling. I understand all the compromises between gearing, tuning for acceptable performance and mpg. To bad, the initial cha-ching for the V6 is so much.