Just started this last night and am currently at Chapter 2 after six hours. I'm loving it.
The increased danger at night time and the limit on fast-travel makes me plan my days out accordingly: drive, gather, explore, hunt, return to camp. Level up, have a meal, browse the photos, go to bed, repeat! It's a simple loop and I can see how people might dislike this, but I just find it so relaxing. The lads are really great company and they make the life-sim aspects a joy to participate in. After some time with the combat I'm understanding it and enjoying the flow (still using Wait Mode and taking my time to think about tactics). I can see myself putting a lot of hours into this world.
I understand the complaints regarding the cutscene direction and overall editing of cinematics (like the Kingsglaive scene insertions). It's not slick like the presentation of XIII. However I'm enjoying the personal interactions a lot: small scenes at the camps, in the car, out on the field, etc. This game has so much heart and I can't wait to see where the story takes me. Once I can pull myself out of the exploration and side quests, that is.
Also Prompto is such a sweetheart ;m; I thought he'd be irritating like a Rikku/Selphie/Vanille of the group but he's actually great. I find the whole group dynamic to be very good in general - way beyond my initial expectations.