Yesterday I started (on Xbox) the DKS on nightmare mode and so far, just reached Level 6, it's great to play and my female hero (a catwoman can make fast moves, isn't it?) is still alive !
I another topic I will tell soon more about my newborn female hero
(playing hardcore = no reloads and killed is like game over and ... R.I.P.)
I can assure you it will take months*** before I reach the end,
IF I ever reach the end and not always get killed again ...
*** I take my time to do lots of trading to find the weapons and armour my hero sweets best - many decisions I must make over and over again ... it's "eating" many time !