And as you said, patience and a bit of memorization/trial and error will get through the entire game. No other typical action game skills required, yet people hype it as if it had the most difficult combat since Ninja Gaiden II (not that many, if any RPG gamers have experienced that game.. but you know what I mean).
Pretty much any modern Ninja Gaiden is way more difficult and requires more skill than Dark Souls. Though, I wonder how difficult Dark Souls is in comparison to some NES titles that are usually said being harder than any game that has come out in the last 10 or 8 years like some retro gamers mention.
Or heck, is Mega Man 9 and 10 harder than Dark Souls? Some people say those Mega Man games are brutal.