This is a wonderful game, but flawed pvp that barely works half the time means that this is pretty much a one player game other than one or two boss fights.
Supposedly their going to patch this along with multiple exploits and unbalanced items/abilities but I'm not holding my breath. There were fun parts in the 120+ hours that I played, but I can't help but feel unsatisfied thanks to lack of any real multilayer and the horrible game balance.
Lightning weapons can be combined with pyromancy for a stat free build that massively out damages everything else for a LONG time. Do this only if you want to remove all challenge from the game.
Also watch out for people using a spell known as The Walk of Peace that slows all surrounding foes down to a crawl and stops them from rolling. Greifers like to combine it with the Ring of Fog that makes them near impossible to see past point blank range and prevents lock on. This makes it almost impossible to fight back when combined with the slowing effect.
Dark Souls is a great game. The challenge is consuming. It runs good and looks great. The only down fall I have with this game is that its not a gamefly game. Unless you play constently you will have paid for the full price of the game with your gamefly perscription. If you our intrested in this game i recomend you get it from gamefly, see how you like it (becuse alot of people don't like the challenge) and decide if you want to purchase it.