The optimas have had mixed reviews. I was just in the market for a new battery and was faced with the same dillema. After doing some research I developed a theory: the people who said their red tops gave them trouble also usually mentioned using a battery tender or charger in their post. That got me thinkin...then I read somewhere that optimas dont respond well if they are not charged the right way (something about overcharging or charging too fast, not sure) but I think it might be possible that people are killing their optimas with chargers. In the end I decided to go with a red top and havent had any problems so far (one month of weekend driving only).