Television and movie scores aren't exactly memorable to me; I may like the movie itself, but it's because of the story elements and such. However, every so often, I come across some really good music. Of the shows I watch on a weekly basis, "Person of Interest" and "The Mentalist" present pieces that I find myself humming during the day. Hans Zimmer has had a similar effect on me with his work on Chris Nolan's Batman series (whose brother just happens to be the creator of this show).
What sticks out so much in this score are the strings. That's what makes it so memorable to me. Listening to the album track by track, you'll certainly know what I'm referring to. The show is dramatic, action-packed, and amazing, and I can honestly say the music adds to that. When hearing "Root of All Evil," the theme for what some might call the evil, female version of Finch, I get chills. It's that awesome.
In my initial play of the album, I found the pieces to be so suspenseful and mysterious. With future seasons, hopefully John and Harold will have happy moments in their lives. I sure hope so because I'd love to see how Ramin Djawadi would make a beautiful or romantic piece with it still feeling like "Person of Interest."
Overall. Five stars. You may not want to dish out ten or fifteen dollars for the album, but it's definitely worth it. If you can spare the extra five bucks, definitely buy the physical album so you'll have the score in a lossless format. I'd hate to think what an MP3 file might take away from this masterpiece.