i like it. good concept. not possible to cause melee damage, after that cause damage by spells like in vanilla. very clever.
this "mod" (or perhaps this "new" game...) is very impressive anyway, i love the quests, i love the dungeons, i love the new monsters, i love the story and the lore background and so far it's hard enough to really enjoy the challange. and the music is fantastic. i like oblivion's music and nehrim's just as perfect as oblivion's.