After about 8 hours in, my thoughts so far:
Pros:
Game runs well
Graphics are pretty good
Music is decent with a few phenomenal tracks
Voice acting is good
Cons:
The way the story is told is a disjointed fucking mess
Also, the story is completely uncompelling so far
Sidequests are pretty badly written
Writing is pretty bad
Battle system isn't great... definitely NOT what I want out of a Final Fantasy, but even outside that criteria... it's alright
No AI controls for your teammates
Overall I wouldn't be surprised to see this get similar backlash that Dragon Age Inquisition got. It has similar problems so far, but without the amazing charm that DA:I had with its characters... and not nearly as compelling a beginning as that game.
I also think it'll probably end up like MGSV for me. A game I might end up liking on its own merits once I put in some hours, but as a game in that series I didn't think it was good. Didn't like it in the same way I liked other Metal Gears. So far I'm not liking this in the same way I liked other Final Fantasies.