Personally, I didn't have too much trouble with loading times, they're hardly any worse than what I was used to with RTW 1.5 + EB. I do run the full graphics though, that might have something to do with it.

I miss the arrow keys, and I'm not entirely sure why all key-functions should be grouped under the left-hand-side of the keyboard. Oh well, you can probably re-assign hotkeys anyway.