i wouldnt say similar... dark soul or demon soul have this satisfying feeling after slaying the enemy lol..

about memorizing part, well, i do memorize a bit, but its not that helpful.. theres more to unexpected things happened and you die =_= and you dont always dodge in demon/dark soul, you can shield too, depending on character build and play style..

all in all, they are different game.. play it, and you'll see..