The driver arrived on the scheduled time and took me to the airport in time for my flight. So, everything was OK.
The transfer was provided in time. The driver help us in identifying the correct terminal in La Guardia airport (an important thing when you are flying DELTA). I only have issues with the vehicle cleaness and the high speed of the driver.
We had already used this service to transfer from JFK to our Hotel.
This was equally as good with the Driver arriving early giving plenty of time to get to the airport.
We would highly recommend this service.