I have been enjoying this game, just as a time killer and it's a game I don't really have to put much effort into apart from organising my lineup for different fights and levelling up when needed.
However.
The thing that really irritates me is that I'll do a bit of the story and a couple of fights and then I'll come to a section where I can't continue because I have to complete AFK battle levels, this seems to happen very frequently and its getting annoying, ive literally only just finished 35+ levels of the AFK battle to unlock a new area and had 2 fights that where story related and now I have to do another 25 levels to unlock a fight so I can continue along the map.
I'm at the point where I can't be bothered now and I know when I do the AFK battles I'll get about 5 fights into those 25 and I'll fail because I'm not strong enough.
It's so slow going when I comes to levelling the characters and with very little ways of doing so it's frustrating.