Comment: They did arrive on time....the very last minute of the two hour window. I'd say anytime you are going to be that late in the window. A courtesy call would be nice. I lost confidence they would show, called 1.5 hours in, was told they were minutes away and then the arrival was still almost 30 minutes. I was raised on Vince Lombardi time (15 minutes early or you are actually late) so showing up at exactly 12 on a 10-12 window wasn't exactly a positive. Other than that they did great!