Probably one of the best cod zombies recreations I've seen in a while. You have a good selection of maps, and a decent amount of weapons and power-ups. The gunplay feels great. Reload animations are decent. And the AA-12 is genuinely one of the most overpowered weapons you can use in the game. One problem I have is that the default walking speed is pretty slow, and you run out of stamina from running pretty fast. This can be fixed with maybe a perk-a-cola, similar to stamin-up, that raises the default movement speed. I also noticed that on the map, House, I couldn't progress past round 1 due to zombies not spawning.
Other than that, if you're a fan of cod zombies, this game is for sure worth your time, so please just download it already. If you still can't decide, I'm uploading a video of some raw footage of one of the maps to my channel, which I'll post a link to in the replies once its done uploading.