More than a 30 minute wait at the terminal. When a vehicle arrived there was confusion and uncertainty about who was going where that delayed us even further. We didn't leave the airport until nearly 1 hour after arriving at the ground transportation desk. Nice driver though.
Our flight arrived early so we expected to wait until our prebooked time for the shuttle bus but we got taken within 10 minutes which was great. Cheap way to get to Manhattan from JFK airport.
Bit of a wait at JFK but this was not down to the transfer company just the queue at the airport and the way they handle the contacting of transportation companies could do a lot better. Mini van that arrive was simple and nothing fancy, in hindsight would probably book a private transfer to save having to go to another terminal to collect someone else but that's what you get sometimes when you book shared service. All in all worth the money paid.