The combat was my biggest concern to be honest, I've found that the quasi real-time combat in Final Fantasy games has mostly been terrible. In fact, I'd say everything after FF10 was a bit crap in that regard, something I've always found odd as Square own the Star Ocean IP. The combat in Star Ocean: The Last Hope is a fantastic example of how combat should be done in an ARPG imo, if they'd put something like that into 12-15 I'd not have even minded the fact everything else in them was lackluster.
I was pleasantly surprised when I tried the demo for FF7R out, in fact it's what prompted me to bite the bullet and buy the game. I was genuinely expecting the absolute worst, and while not perfect it's at least enjoyable, something I think can be grown into something genuinely good in the later games.