When editing VA now somehow feels a lot slower than before. When you make lots of changes to existing, already parsed code (even if its only reformating the comments) you can feel that there is a slight delay, longer than usual, before the cursor moves, before the information in the definition/context bar is updated.
Switching away from the VA view (in VS6) does not change much. I have yet to try it in VS.NET.
The "pre-selected" state of items (background color) in the completion list is irritating. It is too light to be intuitively seen, you have to LOOK before you can hit enter to accept it.