Demon's Souls was better in that aspect.
The only part I remember needing help was in the last area Boletaria. That place of full of strong enemies, there is: Four Black Phantoms, one Dragon (optional), three Red Eye Knights, one or two Boletarian Soldiers, one Imperial Spy, two Fat Officials and the False King that is ready to fuck your shit up.
1-4 of Boletaria is a short segment, but is extremely dangerous if your are not careful.