Game changer... Clearly the OP wants a flame/troll debate happening but whatever, I'll present the view Demon's souls players have.
- we don't think the game is a 'game changer' in the slightest
- we do think the game is a very good game.
- we think the game is challenging
- we think that if you like RPGs, and like challenging games, have a look at it.
- we think if you don't like RPGs, don't like ps3 for some silly reason and don't like challenging games, that you should sod off; leave us alone. We're having fun.