I have always - meaning going back for many versions - found setting reminders to be one of the slowest aspects of AC. Not terrible (I would consider a 15 second hang to be pretty bad) but slower than most anything else.
And back to David's original point... it is not a big deal, but it would be nice to be able to copy and paste pharmacy fax numbers from AC. Neither ctrl-c nor select and right-click work for this.
