Dayz is very much like Marmite... you either love it or you hate it. I wrote a review on this game a year or so ago when i had 72 hours, and it said the game was fun but wasn't anything special. Now, after a considerable amount of extra hours and starting my very own Namalsk server, as well as embracing some of the other mods this game has to offer, it has become a much more enjoyable experience.
This game would get a solid 10/10 from me if it weren't for the crappy vehicle physics...