HW leveling dungeons are pretty much spot on, imo (having run them as all 3 roles). Although pulling all the trash at the start of Sohm Al NM can lead to some spinchter-squeezing moments, even with proper cd usage to mitigate the crapload of damage.
Then again those dungeons have ilvl caps that are barely above what is available as drops from the dungeon, so there's no outgearing them by 20+ ilvls.