24 is very unique. It is probably the only TV show i can recall which tries to maintain suspense and action in every second of every episode. There is hardly any dull moment. But In its effort to be this non-stop edge of the seat thriller, it often insults the audience's intelligence, it repeats the same tricks, commits the same mistakes.. over and over to the point you feel super silly, but nevertheless still willing to overlook. So, if you are willing to ignore and forgive the mistakes, you will enjoy the show very well.