This movie is 2/3 a masterpiece ...

Rating: 9/10 (6 January 2016)

... and 1/3 very good.
If it had ended about 30 minutes earlier I would rate it happily 100/100. Don't get me wrong: I was absorbed into its thrilling ending like anybody else, but it doesn't hide the fact that a heartbreaking story about surviving through the memory of love, changes into a thrilling revenge showdown, which is brilliantly done, but nothing you wouldn't see in any Tarantino movie.
So if you are just looking for a decent movie: Never mind. Otherwise enjoy the last 30 minutes of entertainment, but just don't forget about the first 2 hours. It teaches you, what keeps our souls moving, when there's nothing left to move our bodies.