Good game and great story!
Love one tendention...
Also want to say that game have well made detailed interactions between characters.One of the best game parts.
Fights pretty boring. First 9 hours was good due to fast beating of enemies and a lot of story between fights.After that they become much harder, but not really harder, just consuming several times more of time.
Before ending location after buying/upgrading everything possible they become too easy, and that's good because i can go through them much faster ar just don't battle for exp/items.After part where i beated last boss without losing even 10% of any character health(no healing from any sources).
Game have more interesting abilities than Dino Chronicles but they don't really need.Only Dei and Asura abilities really useful and necessary.But their abilities quite similar to those in Dino Chronicles, so...
4 out of 5
About endings, in comments you mentioned that game have only bad endings, with one better than other.But it is doesn't quite right.
Spoilers Ahead
Second ending looks more like infinite peaceful vacation for rest after everything.No more fights, B.F.S and other bad things (mostly due to B.F.S).So this is rather good ending than bad.