It was an easy watch, something you’d choose when you just need a simple movie to see without having to think too much about it. The setting was limited, and in the middle of it kinda got a little boring but it was entertaining enough. The plot was also unexpected. The actors really did a good job for their part.

As for technicality, I am no pilot but I can expect that the scene where they almost hit the mountain then rammed onto the snow, yet managed to kept on flying was unrealistic.