There are a few issues, but all in all it is a big step forward.
The problems:
1. You spawn with like 30% satisfied for hunger/thirst, so you need to eat and drink a lot all the time. Once you get satisfied you dont need to eat/drink for a couple hours of gameplay.
2. Most servers are 100% night time. This sucks because I just got a radeon 270x and the game looks pretty.
3. The zombie population is extremely low for the time being. This is by design as they work on server stability with zombies.
4. Guns are hard to come by atm. I've played for 7-8 hours and found 1 gun, but not any ammo for it.
5. Stuff only respawns every 4 hours or on server reset. Youll walk through a whole town or city that is completely empty from previous pilfers.
Good stuff:
1. Melee battles are super cool, you don't need the xhair right on the zombie. When the melee weapon would make contact with the zombie, it hits them. Like real life.
2. Nearly all buildings are accesible.
3. When the town hasn't been raped, there is quite a bit of loot.
4. UI and inventory screens take getting used to but, IMO, they are much improved.