It would be nice to be able to set a default date for the Date Interface tool.
Props to @KaneG for the workaround ( http://community.alteryx.com/t5/Publishing-Gallery/Set-Default-Date-for-Date-Interface-Tool/m-p/3573... But I'd like to see something built in to the tool rather than use a workaround every time as the standard. Plus, I enjoy the uniform look of having two date inputs.
Just as a side note while we're on the topic of the Date Interface tool; it is really misleading the way "Today" stays outlined even after you click on a different date. I always second guess if it took my click or not.