According to Steam I tried for 8.5 hours to like this game. I failed, even though the story looks interesting enough and the visuals are beautiful.
I have read from others how they dislike that choices give little hint to as what the outcome could be. Even worse is how the story swaps between protagonists and thus those outcomes are arbitrarily moved into the future.
Still, I'd try to play it if it wasn't for the gameplay. The combat must be the worst turn based combat I have experienced. Units can move past enemies, in and out of melee without any fear of turning their backs on enemies. While attacks of opportunity have become a staple for many games, they are non-existent in the Banner Saga. Coupled with how units can burn Willpower for extra moves and then burn Willpower to boost their attack, means that even if you try to tie up an enemy in melee, they can still stroll past your fighters and get to your back row. After all, archery range is within charge distance. And since movement is always the same, there is no chance to get out of melee range once an opponent has gotten close.
Even worse is the initiative system. Both sides take turns moving units, meaning that the side with less units gets to move those more often. If those are more powerfull, having twice the stats of the player's units, then those powerfull enemies hit multiple times before you have the time to even try to save your hero.
Yes, you can learn to beat these fights. But it seems less like adapting tactics than learning to play a broken system.
I had heard combat was bad, but I had not expected it to be this bad. At least I bought it very cheap on the Humble Store for a good cause.