Hunter65416 said:
For me its,
-The UI is a bit weird and bland
-From the videos ive seen the majority of the environments seem a bit grey and gritty compared to the lush green environments i loved in oblivion
-im not sure about the finishing moves in combat that you have no control over (there sort of cut scene type things)
-The way the health mana fatigue bars are layed out and how big they are (i suppose that comes under UI)
All I can think of right now, it still looks amazing and i'll be picking up my preorder on 11.11.11
As I've actually had a chance to play the 30 min demo during Eurogamer Expo, maybe I can answer some of those concerns.
-The UI
is simplified. Personally, I liked it, because it was informative but never obstructive.
-Skyrim is set in Skyrim (Duh!

), Which is a northern part of Tamriel, with lots of mountains. These have been done exceptionally well, but are obviously a lot greyer than the grassier tundras and forests (Which there are still plenty of). The Dungeon I played was a bit dark and brown, but it was underground so that's not really surprising.
-The finishing moves are cool! (In my opinion) I remember them being random/last enemy. You can't be attacked during them, so you can just sit back and watch (good for pacing in hectict combat?)
-The health and mana bars
are huge. But they aren't visible unless there is a change in one of them (And only for the ones that changed). This allows you to have a completely clear view when things are calm, but also very clear visual indications of when you need them (hence, the oversized bars).
I hope that calms some of your concerns.
Incidentally, I had no interest in Skyrim until I played the demo. My brother adored Oblivion, but I could never get into it (same with Fallout 3). He was very excited about playing the demo when we were at the expo, and since it was only the two of us, I decided to come with him and try it as well. I've been hooked ever since.