The Day Z hack is absolutely amazing. If you find the features limited you can just go onto the forums and grab a custom script made by one of the many AimJunkies users! Not only are the hacks amazing but the support is the best I have ever seen. It beats steam by a longshot. I needed help getting my arctic combat hack to work and 2 minutes after getting on teamspeak Thomas had already helped me and I was ingame pissing people off! If you're thinking of buying one of these hacks save yourself the time. Don't think, just buy!
(Sorry bout title, chrome decided to use one of the ones I posted earlier -.-)