I decided to write this review in order to counterbalance the negative one posted by Farron34.
I liked this movie very much, because it showed real people and their simple lives. Because for Travis just out of prison, even a squalid motel room is a gift, and you perceive it without one word said in that regard. The way he walks out in the chilly air with a hot cup of coffee to look at the "outside" with a fantastic 360° pan around him showing real America: freeway, cars, asphalt, anonymous buildings, bright advertisement - nothing exceptional but the beautiful sunset light of the Nevada desert.
I liked the way it criticizes the Church of Christians, of the zealots, of those who live off the church and its charity but the observation is done gently and respectfully. There is more but you have to see it for yourself, the joy is in the details.
If you want spectacle and glitz this movie is not for you but if you want to observe a few human beings dealing with their banal, only life, filled with the little things that make it worth living, well, this is an excellent movie.