They can rename this game to Frustration.
My little brother picked a copy up today, he had totally forgot that it came out, so he hopped on it ASAP when he woke up.
I got past the Taurus Demon and let him play again, he originally quit through frustration at that part, still hasn't beat it.
Won't use my strategy.
It was easy after I farmed about 1,500 souls and stocked up on Firebombs from the nearby merchant by the closest bonfire.
I ended up buying much more than I needed, but better safe than sorry. As long as you're smart enough to kill the sniper by the entrance to Taurus Demon, and his companion - You should be fine using Firebombs on him. There are other ways, like killing the two guys up above, spawning the demon, and running back to the part, jumping on him, stabbing him repeatedly through that - There is also a way to make him fall of the ledge.
Regardless, it's a brutal game in the sense that you can't play for many hours because you will end up hurting yourself or somebody around you from how stressful it is... But I love it, MUCH better than Demon Souls, which I could hardly play. I hated that game.