I actually like this fight, it's not to hard and a cool callback to both Demon and Dark Souls. I just decided to get the Covetous Serpent Gold Ring +2 on NG, so I burned an Ascetic and decided to try and fight all five at once. Got it first try. Granted, I am level 237 and did summon the NPC Shade, but it wasn't so bad. They body block each other a lot at first, used my max Pyro Flame and used Chaos Storm and it burned most of their health down, then just spammed Dark Orb and had to roll and block a LOT.
Did have to heal a few. But I think those two red dogs after the fight did more damage to me than they did lol. I had no idea they would be there.