PC port controls are horrible thou - also as a df player, it isn't actually very hard. Its not easy, sure, but i utterly lost all respect for most sources and the casual gamer opinion after playing it and finding it, hard, yes, but in no way as escalating as many claim (16 hours in, so... may still get super serious?)
It's nowhere near as hard as people hype it up to be, and since I grew up with NES and SNES games I found the difficulty of Dark Souls to be just right. Now to be fair, if the extent of someone's gaming experience is PS1 and later for consoles and no niche PC games, then Dark Souls may legitimately be the hardest game they've ever played.
One of the things that Dark Souls does really really well is allowing you to make the game more difficult for yourself, without fundamentally changing the gameplay. The SL1 Depraved run that I did was very hard, but it was still the same fundemental game; much like doing a Mega Buster-only run of a Mega Man game. Too many games require hilariously silly (and often outright un-fun) artificial challenges in order to make them even remotely difficult.
My hope is that Dark Souls shows AAA developers that there's a market for people that don't want their hands held all day while gaming. I'd personally like the development style and difficulty of Dark Souls to become closer to the norm, with deviations in either direction (there's a place for easy games; I love a casual game that I can have a few beers and be silly in as much as the next guy).
On a side note, I find Dark Souls to be much for challenging than DF. DF isn't hard, it just has a bad UI and poor documentation.