I'm really enjoying this game! The characters are stunning and the skill effects are beautifully done.
They have separate different servers too. But I'm not sure if this helps with the stablization of the gameplay. In my own experience, the game cannot detect my wifi, but just for once. It is very stable overall.
The combat have both speed up and auto features so players can choose their preference on their own. For me, I use the speed up features but not the auto features because sometimes there are little item that you need to click and get on your own and I don't wanna miss them...
As for the music, I think it suit the game too. Like a battle music but have some kind of ancient Japanese rhythm in it. Remind me a little bit of the Onmyoji~(*^ω^*)