Driver was on time and got us to the airport using side streets inside of crowded freeway! Great
I'd thoroughly recommend a private mode of transport as you can pick and choose the time you want the driver to pick you up as opposed to having to be picked up at sme unearthly hour in the morning if your flight is a morning one. Our driver was a few minutes early in fact and was very polite and courteous. You book the times online so you don't have to waste money with phone calls.
The driver on the inward journey from JFK was excellent and helpful but on the return journey the driver was unfriendly and a bit curt. However, both were on time and this took a lot of pressure off getting flights on time etc. The vehicles were very acceptable.