
I didn't mind the zone design, actually I really liked some delve visuals.
My problem was that the story was just so formulaic and uninteresting. I really miss more creativity in storytelling. Dialogues also weren't that interesting mostly, and there wasn't much lore either. I also dislike how lots of dialogues seem strangely moral and un-Tamrielic, in a way. But the worst thing this time were the plot holes and bugs.
Generally, different endings - actual endings, not just the epilogue - would have also added some replayability. Well, given the writing itself would have been interesting.