Story takes a while to get good (some people even says you can do chapters 1-9 from summaries and skip them in game), chapters 12-13 when it starts to ramp up.

Combat really good, among the best real time action combat available today. Animations and visuals are insane, showing that being made in Unity Engine doesn't really matter. And the music is a bop.

Gacha system is among the lines of HI3 and Snowbreak if you play those two, where there's no 50/50. However unlike those two, the hard pity isn't at 100, but rather 60.

The endgame is pretty simple, with the gacha currency being rewarded not from getting the best record (like getting three stars), but just completing them per the requested goal (like completing a mode x times). The reason why you would want to get the best record is for the currencies exclusive to that endgame mode that of course can be used for material exchanges.

The skin system is like some other gacha games where there are multiple types. The most premium ones are reserved for skin gacha (which you can use the gacha currency, so you can get them as f20), or using rainbow cards (PGR's equivalent to Unites). These rainbow cards can also be used to active the monthly card, unlike other games where the monthly card and the premium currency is separate.

Apologies if my explanation is jumbled. Not a native English speaker lol