I'd like to consider myself a fan of bullet hell games, so this one was a total blast to play. The only thing that confused me at first was the sheer size of your character on screen compared to how much of her could actually be hit. It was a little disorienting at first, but I got used to it.
I'm not really into the whole 'kawaii magical girls in a shooting game' shit, but I guess the art style would be alright if you're into that sort of thing. Doesn't affect the game's quality or anything, it's just a personal gripe.