most of the drivers cancel your request within a couple of minutes. Some of them do use there sat Nav at all. Plus when you are at a particular place they go to a completely different place to pick you up. I once booked a trip for my parents and I later found out that they took them a long way around to the hospital as a result as they were heart patients they almost missed my dad's appoinent. I would like to say that they do not care especially if you book to go to the hospital.