It's better in virtually every element, yes. I've only just started playing today (bought it back in 2017, only just realized the Alpha Access was available) and I'm especially impressed by the crafting/base-building aspect so far. Already on track to be miles above DayZ's level, I'd say.
I'm running a DayZ server and 100% agree it's better than DayZ. you don't need mods just to make DM playable. Once we get to Early Access hopefully we will start seeing mods and stuff that will allow us to do a little customizing (which it might not need much of) this game is gonna be the best zombie Survival game out there. Waiting hurts so much I want it now