I usually don't write reviews out of lazyness, but after reading a couple here I feel like I should.
A lot of reviews mention hackers being a problem, which was very very true and very very annoying. Keyword was. Since VAC support was enabled a couple days ago (early November '14 for distant future readers), I have yet to see one -- which makes the game fair and playable in the first place.
It's similiar to DayZ, but puts less emphasis on realism and is more action-horror-y. Falling 15 feet won't cripple you until you find meds, you just lose some HP which can be healed with any sort of medical item.
Food/Hunger is a thing, but easily maintained.
There's a bunch of different Nether, some of which you can comfortably melee once you get your way around the combat system, others I wouldn't take on with a sniper rifle and 500 meters between us.
Like in other games, Death comes cheap. You can try to be friendly, sure, but odds are you'll get shot and your corpse looted. Goodbye to your stuff and your XP.
Yes, XP. Playing earns you XP - Character XP and Account XP. Character XP are reset every time you die, but fairly easy to get. If you know what to do you can reach level 30 in an hour or so. Every level up gives you a stat point which you can invest in any of your six skill trees, all of which give a perk at level 1, 4 and 10. You don't have to finish or abandon one as you go, you can mix it up as you want.
Account XP are permanent and give you minor but helpful bonuses, a rather early one is +20 HP for example (for reference, you start with 1000).
All in all I'd definitely recommend at least trying it out, and if 10 bucks is too much for you wait until it's on sale (probably will be during Winter Sales) and grab it for threefiddy