So I played this game before they added badges and I think I can give it a little review.
Gameplay: As other have said you can just auto fight and it a pretty easy win until chapter 4. Later on however, you do have some strategy cause if you don't the auto AI is pretty dumb and will wipe. The most effective strategy is 5 dps nuke.
Art: The art and animation is pretty nice and crispy. IDK how many artist they have, but they did a pretty good job. Only complaint is that some girls "assets" are way too big, I like big honker as much as other guys but when it the size of their torso it pretty ridiculous.
Bugs: IDK who's responsible for the codes, but this is got to be the most buggy gacha game I have ever played. From issues of getting pass the loading screen, freezes during battle, shop/gacha pulls weirdness, and etcs. (also maybe the skin is broken too)
After progressing in the game you really noticed how stingy the energy system is. I get the game is in early access, but at the very least make it so new/never attempted mission cost half energy so it not super slow.
I feel like the game incentivize DPS over tank so the strategy of just rushing damage is way better. Either that or Audrei is just the best out of the starters.