Yes and no...
DayZ is not for the weak. Which is why it's very difficult to get into it. The ARMAII engine is not designed to undergo such a modification, and thus, the game can be extremely dodgy. Strange bugs occur, and the game can punish you for seemingly no reason. (A door breaking your legs, for example.) Another thing about DayZ is that you need a friend. There's no ifs, ands or butts about it. You can try going t it alone, but it won't be as fun. Get a buddy to watch you over, or even 3. You'll find it a lot more enjoyable if you use Steam's VOIP to talk to each-other when engagements happen.
Another thing... While zombies can fuck you up, they're not the main attraction of DayZ. It's people. You can always run from a zombie, and zombies can be predictable... But people? You can't run, you can try to hide, it probably won't work, and in a lot of cases, your caught in a fight, and in some rare cases, you'll find someone who'll pat you on the back if you do the same for them. (Trading blood bags.)
As someone already mentioned though, the standalone is coming in December. Wait for the standalone if you want it. If your into a milsim like ARMAII, go for it... If not, well... ARMA is kinda boring as fuck.
It's also a good place for some stories too...