If you love to read a scifi book, play it.
By the way, the gameplay is not bad as other low score reviews. It has new and old stuffs. The new ones are your real partner along the whole game, the new vigor system that is more helpful and a new brighter environment than other games in the series.
The music, sound and graphic are too good. The light, the architecture is wonderful and will take your time to contemplate them. The effects of vigors are cool as well. And you can feel the emotion in Elizabeth voice and on her face, they will make you feel hurt if she's gone or taken from you. You might love her like i do.
I don't finish the other games of Bioshock series but I will tell you: If you don't finish this one, you will regret it whole your life time. For sure.