You can take the plane away for up to 3 days with no minimum daily useage, more than that is fine but you must do 2 hours/day
So, if you go away Mon-Fri, you get billed for 10 hours' flying?
I can perfectly understand the business reason for this but it makes it highly unattractive for actually going anywhere, other than daily burger runs and quick 1-night or 2-night trips into nearby Europe.