I've managed to play about 3 hours of the game today although Steam doesn't actually recognise that I own it for some reason
So far it's everything I expected from a Techland game;- looks great, fun mechanics, good crafting system and weapon/item variety but let down by mundane missions, intolerable characters and a weak narrative. It's basically Dead Island the second coming although it does have a sublime setting and attention to detail. It just lets itself down in key areas. It also runs like a sack of shite on PC at the minute with considerable frame rate drops and stuttering.
I wouldn't say this represented a full price product although it is pretty good fun. I'd place it in the £15-20 category. It's still early days but I can't see the game dramatically improving or becoming more varied.