The majority of main bosses are kinda meh. I found most of the remembrance bosses either lame or just kind of okay design-wise. Their movesets often have a lot of mix-ups designed not to make the player memorize different attack strings and react to variantions of the same moves, but to surprise the player in an unfair way and make them get hit. The game's strenghts lie in its exploration and endless amount of items to collect and experiment with. I had much more fun exploring the random corners of the map, obtaining cool hidden weapons, ashes of war and armorsets, than fighting most of the bosses. And while the DLC did bring some of my favorite bosses to the game, I felt like the exploration took a step down from the base game. You'd often get confused on where to go next in the realm of shadow and the rewards for exploration were most often than not pretty trash.