We used this service once before when we went to Paris so decided to try it again for NYC it was simple enough to use and reliable. Only thing this time was the crazy driver we had on the return but he got us to the airport on time. And its miles cheaper than what a taxi would have cost.
Straightforward to find at airport, very friendly and knowkledgable driver.
Very good for the price. The driver was in a real rush and its annoying to have to go via everyone else's hotel BUT its a good price so worth the hassle if you are not in a rush.