gameplay wise, is auto battle and the girls will do everything for you, no strategy (maybe some unit planning) and just level them up higher for each stage. afk farming is okay i suppose, like idle on destiny girl.
the trials (adventure cough) has almost everythinf in destiny girl as well. the cave space time (lost garden), the infinite tower, the dispatch system, and many more.
gacha is okay, the game gives you many crystal and gacha cost 3000 for 10 pulls. the girls had okay skill (some are kinda useless though)
of course this is just my opinion and since i play destiny girl for so long. if you dont play that game, maybe this game is enjoyable for you.
and i do expect huge updates like destiny girl did and make the game more enjoyable with new features and such. i dont think ui change are neccesary because the game is already gorgeous
all in all, you can play and try the game. again, music is MASTERPIECE