I actually quite liked Nar Shadda overall, which says something since I detested Coruscant's dull, endless closed in metal streets. Well, shadow town was a bit of a pain in the arse will all the mobs in tight spaces. Even with a character with stealth it was hard to get around without getting into a scrap every other minute.
At Lv43, the quickbar situation is beyond acute. I'm not looking forward to flashpoints where I can't tank properly.