A Million Ways to Die in the West isn't especially worth your time, and the most probable result will be simply a kind of disappointment at what might have been. It can't fit the pieces together as well as it ought to, and many of them are from a different puzzle altogether.
The parts don't make for a worthwhile whole, despite the fact that a lot of them are great parts.
It's a wasted effort that might have been a great movie. It's visually wonderful... mostly, but the story is calling you stupid, or is designed for people who have never seen a movie before. The acting is mostly top notch, but it has to be mentioned that Jessica Alba is beyond awful, because however much you may manage to enjoy the film, she'll snap you right out of the experience.