Not bad but I had no expectations going in.
There are a few things that drive me nuts in movies; a few times there were some inexplicable gaffs or scenes. The one that I couldn't get over is the one where he is struggling to get to a stream to get a drink of water... he dips his fingers on the water brings them up to his dehydrated lips and it appears that he was dying of thirst... but when he rushes to fill his canteen, he opens the cap and water pours out of it... So I am guessing the director let it go for some reason... Maybe the character didn't know he had water in the canteen or maybe it wasn't fit to drink after a week, i don't know...
But overall I enjoyed the movie and the acting... Don't know if he died at the end but I know directors like to keep the ending open to interpretation which has become completely boring and unsatisfying to me.