Problem being the information on these sites can be easily manipulated .... And/or misunderstood.
And there is nobody to oversee your trip to see that things go well for you.

I have seen one well known local agent calling to confirm that a client had made it to a plane, then checking on arrival and phoning the waiting cab driver to be sure the guest was met.... She knows how places are today, including immediate weather events, road conditions etc, and can advise the guests accordingly to ensure the best possible experience.