I played through Shadow of Chornobyl and it is without doubt my favourite game of all time. Full of tension and dread, excellently paced.

Then I played Clear Sky. God, that was a steaming turd, particularly the last quarter (from Limansk onwards was just tedious). There was no point in having the Clear Sky faction at all, as they didn't help with anything. It was basically a one man job.

Is Call of Pripyat worth it?