G'day, I have only looked at the trial version now for a few minutes after hearing great things, and it looks really good.
However, I would like to suggest adding the ability to zoom with just the mouse wheel without needing any modifier key, and the ability to pan with just the middle mouse button, again without requiring any modifier key.
XARA can do this, GIMP can do this, Inkscape can do this, even Anime Studio does something very similar, and one reason I don't like Photoshop or Illustrator is that they can't do this. Being able to pan and zoom using just the mouse feels so right to me that not having this feature is a crippling show-stopper.
I will purchase AD if and only if this feature will be added.
Cheers,
Jules