This game is so entertaining and the amount of content and polish you've added is awesome. The art style and music was cool too. I'll be honest with you though, there are things I absolutely enjoyed and there are things I felt needed some more work.
First of all what I liked, the sheer amount of cat troops there are and how each of them has a different profile and dynamic stats/abilities (not just the basic attack or speed stats). Also, I liked how in the Upgrade screen the troops in my team are marked so I don't needlessly upgrade a troop not in my team.
Now for the things I think can be improved. The tutorial part wasn't letting me defeat the first enemy tower till I looked through all the tutorial messages in that level, so I spent almost 5-10 mins just in that 1st level not understanding what to do till I actually went through the messages. Next, I didn't like that I had to go all the way back to the Chapter screen to roll and unlock a troop, it should be a button available in other screens too. Then, I'd prefer seeing the stats of the troops in a tooltip or something in the Setup Team screen instead of going to the Upgrade screen just to check their stats and decide which troop to add. Then, in the battles, I just blindly spam tapped on each troop in the team to spawn them without understanding which is better against which enemy troop. Also, the spam tapping is okay in the easier levels, but my fingers started paining in the harder levels so I just let go when it did and lost. It'd be nice if there was some currency like energy or coins to spawn the troops instead of allowing them to be free spawns, maybe the currency can be earned from taking down the enemies and completing levels, and it carries over from level to level. And finally, I didn't understand charms was or how to get them, I guess I didn't play long enough for the feature to be available.
Ok, that went long, sorry but I know you've been working hard on this game and it has potential, hence the lengthy critique. Overall it's a fun and engaging game and with some more work it'll be even better. Looking forward to what this game turns out to be in the future. Cheers!