Having played the DayZ standalone alpha so far, I think there are too few items in houses/buildings. It's no fun when you can't even find a basic weapon or food to feed yourself. What's the point in playing if there's a rare chance of getting the basic items you need? I understand Rocket wanting items to be somewhat scarce, but I think that makes it a little too 'hardcore'. I hope items in future versions will be more available, even in smaller houses.
I also think there should be a buddy system, to find your friends easily when you're playing with them.