The third entry of the Souls series wasn't so hard after having played the previous games.
What really surprised me was how massive the world it is, far bigger than the previous games combined I think. Nevertheless, the same survival tactics of the previous games still apply, so if you are careful you won't be kicking the bucket that often. Perhaps one of the main hindrances I detected was the fact that you don't get decent gear until very much later in the game (100% damage reduction shield anyone?).
Also, spells and miracles are ridiculously overpowered this time, I made a pseudo paladin build that ended up throwing lightning spears like Zeus, one-shotting almost everything. Anyways, if you liked Demon's Souls and Dark Souls, this game is a no brainer and you should get it.