Here's the thing.
If you JUST WANT an endless horde survival game with procedural generation and looter shooter mechanics, I recommend it.
If you're looking for something more like other modes, maps, or environmental interaction, I don't recommend it.
It's a very barebones launch (it doesn't even have a main menu theme), but the core gameplay is still very fun. Taking down massive, ever-growing hordes of zombies before they surround you is satisfying.