Have you played it yet? If so, do you agree with Mr. Gamespot above? I'm going to pick it up once I can clear out some major free time, but I'm interested in what you have to say because you seemed like you had some lofty expectations for it.
I certainly did have lofty expectations, and I haven't been disappointed. From Software has taken
Demon's Souls and made it bigger and better in almost every way: a large open world, more enemy variety, more items, more spells, and a lot more interesting decisions to make that genuinely change how the games plays. I think it's pretty easily into my top 10 favorite games ever.
The biggest new feature is definitely the bonfires... there are basically checkpoints in the world that replenish your magic spell stocks and healing items. When you die, you respawn at the last bonfire you rested at. Interestingly, resting at bonfires will not only heal you, but also respawn all enemies in the area, so sometimes you'll actually want to make a tactical decision not to rest.
The combat remains as precise and satisfying as it was
Demon's Souls, with a few new wrinkles. Pyromancy has been created as an alternative to sorcery, and in lieu of an MP bar, all spells now have stocks that you can use until they're gone (and restock for free at any bonfire). They've added a kick for staggering enemies and/or knocking them off cliffs, as well as a surprisingly useful leap attack.
Once again the game contains a huge variety of weapons, most of which behave very differently, and can all be upgraded along different paths depending on your style. You may find yourself staying with a weapon of lower power simply because you like how it behaves versus a stronger weapon.
Again there's only one save file per character, and it's auto-saving all the time, so there's no going back on any decision. Some may find this annoying, but it really adds to the weight of all your actions. You'll find yourself carefully weighing the possible benefits for doing something like joining an in-game covenant (basically competing factions within the game world, a new feature)... some of which may pit your against otherwise friendly NPCs, or allow you to skip certain bosses, or teach you special spells. Replayablility is high simply because there's no way you're going to discoverer everything on just one playthrough.
Speaking of, I've basically finished a first playthrough of the game; I can now fight the final boss, but I'm holding off to round up some gear and do some weapon upgrades before I beat the final dude and start on New Game+, which lets you carry over all your levels and spells and equipment, but makes all the enemies harder.
In any case, I could go on, but that's the quick-and-dirty version. If you've played
Demon's Souls, you know what you're getting here. It's an awesome game that bucks the trend of coddling gamers and is justifiably garnering high praise from critics. If you like a challenge and enjoy action RPGs, you should definitely give
Dark Souls a shot. End of story.