The only trouble spots in the original ED I noticed was broken valley and the final battle. Everything else seemed pretty good balance wise. Now everything feels a bit too easy with these weapons with +65 physical damage. But I guess I can always change the difficulty to hard if I felt so inclined.
Hmm ... indeed, play it on the highest difficulty if you wish

Not only the beginning and the final battle where a problem: also from at least level 24 the game became too easy (because of enemies didn't do much damage).
I hope now the DKS (I go playing on Xbox) will be still a challeging at the second part of the game (after my hero has his Battle Tower etc ...
But I think this will be nice now in the DKS.