Anyway, so I'm playing the main plot,
So I go to Solitude and meet this Bosmer, who can help me infiltrate some fancy shmancy party on the Embassy. "You can't go armed to the teeth! Give me your weapons and armor and I'll smuggle them for you!" So I give him my sword, bow, armor, some arrows, lockpicks (I really don't know what's going to happen to my current stuff yet or if I have to stash it myself), and he's like "Ok, go outside and meet Delphine!" So la la la, I trot outside, unarmed and unarmored, to the windmill, meet Delphine and she's like "Did you give Bosmerguy all your cool stuff! Good! OH MY GOD WHAT IS THAT RANDOM DRAGON SHOWING UP!!!"
Yeah, fuck you Bosmer, and fuck you Delphine.
RE: UI
The only things I really really hate about the UI, is the time it takes for the transitions, and the messed up mouse hover. Yeah I know fades are cool but when you open your inventory for the 50th time in the same minute, it gets really annoying.
The mouse hover: this is definitely broken. You know, when you Console, you scroll the menu up and down and the middle option is highlighted, so you press E or Enter and it becomes active. BUT, when you use the mouse, you highlight another option in the menu. It doesn't become the middle option, but the keys still scroll up and down, and the highlighted menu position stays the same where you last left it with the mouse! And sometimes you hover a different option with the mouse, but the original option is STILL highlighted, so when you click, THAT option gets selected, instead of the one you highlighted with the mouse. Specially annoying with conversations: sometimes you don't get a second chance, and it means you refused the quest or whatever, and must reload.
Then during inventory, same problem as before. But worse, because sometimes clicking on a different category with the mouse simply CLOSES the menu for no obvious reason.
Right now, my only workaround is to use the keyboard only in menus, and if I see the highlight get decentered I hover with my mouse until it's fixed, then move the mouse away and keep working the arrow keys. Very broken.
I don't actually hate the UI (except for the SLOOOW fade nonsense and the brokenness), I actually hated Morrowind's interface: tries to be like Microsoft Windows but fails miserably - hotspots are too small, the windows weren't very responsive - it felt like I was using an old Commodore Amiga workbench. I don't mind taking advantage of mouse and menus and window handles but I think it has to be done well. And there's some hotkeys now, so I is actually your inventory and M is map.
In some ways, Oblivion's UI was more responsive than this though.