How is the quality of the quests? I hear they're much more involved, that they tend to be more interesting, and that they have a much better narrative than Morrowind. Have you tried the stealth system at all?
How is the quality of the dialogue (what the npcs speak, not dialogue choices). How is the VO work, and does it seem to help with immersion? From the videos they remind me of the talking heads from Fallout.
Most of what I read on this forum and others are tech bits about graphics, performance, UI etc. But the few that talk about the actual content seem to be ecstatic (they are also large, mainstream gaming forums).