To begin with, this is a game I would recommend for gamers who love their RPGs, or hardcore gamers - not something for a casual gamer as it's main flaw is that it is linear in story, but there is alot left unexplained and it involves a lot of revisiting of places and searching for secrets areas, especially for those wanting for a 100% completion and/or to do all the quests and find all the secret dungeons and bosses etc.
That aside, the game is superb for playability and uses a new battle system where as instead of having total control of a group of characters, you get minimal control of battilions of characters. Allowing for variation in builds and tactics to how you make your way through the game, and allows for multiple playthroughs to be be varied each time. The graphics also are quite nice, especially the backgrounds to the maps and battle areas - though their are graphical issues with this game for frame loss during cutscenes and loading problems with textures that cannot solely be blamed on the developers as it is a fundemental problem with the Unreal Engine, to which I persoanlly try to overlook as this game has a lot to offer and is seemingly massive for a 1 hit wonder J-RPG.
That amount of detail for the missions and interactions of characters and NPC shows that everyone has a story to tell, which gives you details on history and lore with-in the game and helps you get involved and empathise with your characters, as there are quite a lot of recurring main characters that are not involved with the main story and the game attempts to get you to interact and branch out from the main story.
There is ALOT to do in this game. The story itself is around 60hours of gameplay, but for additional dungeons, quests, sidequests, hidden quests, hidden dungeons and bosses and the DLC (which is intergrated into the standard copy of the P.C. version of this game.) will easily double your time of playing this game and is overly rewarding... though I will admit, doing all that without the help of a walkthrough or a fanpage will be close to impossible without revisiting and searching out every last detail and mission a dozen times efore advancing the main story which is a blessing to those who enjoy grinding and admiring a games detail, but a living hell for completionists who want to do everything this game has to offer but without wasting their lives away.
Lastly, the music for this game is beautiful - as to be expected. I cannot comment much because there's not a lot to comment about except that it's nice, it fits the illusion of helping you become emerged in the game and is just perfect for the game in general.
My overall view of this game is a 7/10 - it's a good attempt at something new, but it fails due to being a port from the console, the fact the Unreal Engine was used (I have no idea why Square Enix wanted to use it, but they learnt the error of their ways.) which is the reason for the graphical problems - but nonetheless, they did well to create a game with a story you can emerge yourself into - though, I will state a warning to those without patiences or are new/casual RPG players - the battle system is difficult and overly confusing, even with instructions, it will take a while before you understand it entirely, and keep your ear out to every little detail thrown at you...it will give clues where to advance on the main story, or where to look for side quests/dungeons.