This game leaves me with a lot of mixed feelings. We all know you don't play this game for the gameplay (though I found it to be meditative). If that was the focus of the game, the plot would have ended after Higgs, the last exciting gameplay moment.
But obviously the focus of the game is the story and the themes. They do a great job of subverting your expectations in a fair way, and its always when thsoe expectations are about to be met. As long as you can make it through the slow gameplay (which does let up slightly as you make your way across America), you might find a game you enjoy.
For me, there were really great moments, but the ending overstayed its welcome. It was just ending for so goddamn long.