Game is coming to the New 3DS. Not that I will be able to play it as I am a peasant with an Old 3DS.
Considering main attraction of game is exploration then 3DS version will be easily 5/10 game. I can't stress enough how much game gains through proper landscape graphics.
I i just finished it clocking 90h lvl 79.
TLDR version. It is good game.
Game first looks like MMO single player game but those fetch quests grow on you and by mid game you are doing them because you want to improve societies in that world. Aside for few very stupid quests and downright "you need to look it @ web" quests most of them are definitely doable and game is packed with optional content.
For someone who is not interested in sidequests he can easily just fallow main path and grind a bit before each boss battle and he would do well. I did 1/2 of overall optional quests in game and almost no lvl 80+ special bosses i saw on my journey.
Story: Remember when i said deus ex machina ? Good damn JRPG tropes. If you are starting this game don't expect "good" as usual in JRPGs. Frankly i think game would have much better ending if it would end on Mechonis with you know who boss battle. All after that is stupid ride of typical JRPG i doublecrossed you/ betreyed and so on. Up until battle on mechonis everything was more or less logical but after that it completely lost me. Especially ending.
So storywise C-. BUT there is also the Journey. And that was excellent. Mind you ton of that was optional content. But it was fun and characters difinitely were interesting and surprisingly they were not so JRPG drama.
Combat: Game devolved at the end to one schematic and bosses became unimaginative. Support gems especially tier 6 broke the game, combine that with revive system gauge or topple/daze/breach mechanic and you have very unbalanced combat.
What really did grind my teeth was fucking obvious RUBBERBANDING. Levels are everything even if you character doesn't do any better damage, more agility, more streanght, buffs etc. In essence it means that no mather what you do you can't beat lvl10+ above you monsters because they will either deal you absolute hammering damage AND you will miss 99% of time.
Here is example. Gogol monster from Bionis ledge is in between 75 and 77 near bridge. I was trying to take them on on lvl 65. NOPE.
Now I am lvl 73 and have exactly the same gear and gems and i destroy them without anyone even close to dying.
This is the reason why i didn't try to tackle on better enemies or optional end game bosses. Because tactic doesn't matter nor your gems and strategy. What you need is magical level that is 2-3 above them and you can take them without any problems.
This was especially visible in Gadolt boss battle where i leveled literally 2 levels and suddenly from unwinable battle i won without any problem.
Combat works only if your are near lvl of enemy below his range. I like flow of battle. IT is fun but fuck it is so bad if you know mechanics...
Combat F. This is Skyrim Bullshit right here. Even FFX other mainstream RPG has better combat being almost decade old simply because it reward you for thinking and taking out hardest bosses in that game required stats and tactic instead of grinding for bigger level.
As i mentioned game is alone worth for world design and the journey. Everytime you enter new area you are fucking amazed with its design and scale and how it fits together.
There is also NG+ in which you keep LVL and gear you want so reaching overall "open up" point should take 2-3 hours considering that you can skip every scene. 
