As a football fan, I enjoyed it, but as a student of American history and one who enjoys immigrant success stories, it was fascinating. What's more, his commitment to "the team" and what that meant was inspirational...how one can achieve success far greater than one's own natural ability...with a solid, well-coordinated team.
It wasn't the thrill ride that "Blind Side" was because it was a bit more cerebral, but it continued the in-depth study of a game that may appear simple on the surface, but is rife with complexities below.
Halberstam is also not necessarily a sports author (though he had written on baseball and Michael Jordan). I very much enjoyed The Reckoning
His bio is quite impressive. He died recently in a car accident. Obit here.
This was his final work.