We used a van from Tiffany Town car in June. The tax was already included in the price on the website. They and everyone else recommends 20% tip. You pay the tip on each leg of your trip, so if the cost of the van is 120.00 for the trip, you would tip the driver $12.00 each way. I tip a bit extra if we have a lot of luggage.
were you satisfied with the service you received on the van? Also, their website says 1-7 passengers. I am assuming that this means that you do not share the shuttle with anyone else?
Yes, we were satisfied with Tiffany's van service. This is not a shuttle, you hire the van as you would the town car. There were 7 of us and about 16 pieces of luggage, and we were quite comfortable.