This review reportedly contains spoilers. I can handle the truth.
It was a rather dull movie where the majority of it was spent with them just pleasantly climbing the mountain and just lots of foreshadowing that something bad would happen. In fact they make it to the top of the mountain with no real tension at all. All the tension is in the last half hour of the film and even then it doesn't live up cause they already made it to the top and you know the film only has 30 minutes left.