The story seems generic at first, but it goes places later.
One feature I really liked about this game was that you can adjust the encounter rate, even down to 0%. No in-game consumables or equipment needed, just an option in the menu. If you want to gain a few levels, you can crank it up. If you just want to revisit an old location because you missed an item, you can turn it off.
I’ll point out that you can use Dragon Age Keep to plan out key choices in the narratives of the first two games, and even create a world state for import into Inquisition. Helpful if you want to play Inquisition and want a refresher and/or don’t want to replay the earlier games