Found them on the internet, but had to call them (actually I could not book the limo from other companies on the Internet either, so I gave up and called this one). $69 for 3 with 5 suitcases in a town car. No hidden tolls, fees. Our plane was 2 hours late. We arrived at 11:30pm at LaGuardia. The driver, Ricky, called my cell to confirm I was using the limo while my plane was waiting to disembark. He met us at the gate with a sign, picked up our luggage on a cart. Loaded up the car (after he fetched it from the garage) and took us safely to Manhattan.
Pros: good service