as far as "anime" styled games goes, the graphic is awesome in high settings. (yes, I was once went to internet cafe just to feel the 60fps high graphics) for my phone, it's also great.
depends on your character preferences, the gameplay could be super cool to real crap. they give new content regularly, as a casual to not to hard gamer I am, it's an almost perfect style. not so unpopular opinion, I like resin system. sure it could be improved, but I see it as their way to tell you to come back later. gacha rate, I agree it shit, but the pity system balanced it out. my one of a few complain though, is the artefacts grinding, where they rng-ed everything.
I forgot the reason why I started playing this game. but I'm staying for the Archon Quest. if I am to rate the story, Archon Quest holds the highest. Story Quest/hangout could be polished. event story definitely need some refinement.
now for the bgm. it is great as it is. but sometimes, I don't catch the feel of some bgm. mostly battle bgm.
overall this is a game I'll keeping. no promises. but I really want to see the twins trully reunited (or fought each other). if someone forced me to choose one game to keep for my entire life and give up others, I'll definitely choose to beat the hell out of him.
now I'll wait for my gilbert frame.