After 50 hours of playing this...
To mitigate the aspect of grinding levels for 14 characters up to as far as 99th level... there's a nice "Secret training" option that unlocks fairly early and allows you to log out in the training facility and gain a few levels (EXP boost every 2 hours you're not playing) for up to 24 hours before...
This is not turn-based Final Fantasy so if you're looking for FF1 - FFX-2 combat style, this will not be what you expect; However, the story is very gritty and engrossing and once you get used to the fact that you'll be dodging a LOT and using mostly ranged combat, you find out the game isn't as...
The only real con in my opinion is the grinding aspect of the game; I started on "Officer" difficulty (aka normal) so maybe if I had started on "easy" I could have blown through it more quickly...