Viewers find 'Mr. Mercedes' a gripping series with a chilling portrayal of a sociopathic killer and a compelling retired detective. The show excels in character development and maintains suspense, though it's noted for its slow pace at times. The acting is consistently praised, making the darker, unsettling scenes effectively disturbing. While the first two seasons are highly regarded, the third season receives mixed reviews, with some feeling it drops in quality.

👍 Exceptional character development and acting.

👎 Third season may disappoint.