Car Service from Lehigh Valley to PHL

[NedsTJ]

Has anyone ever done a car service from the Lehigh Valley to PHL? If so, who did you use and would you do it again? We've got 5 adults and 2 kids. Including luggage means at least 2 cars. Last two times we flew out of PHL we parked at ColonialAirPark just off of 95, which is our current plan. But I just got to thinking how much easier it would be for someone else to drive...right to the terminal, drop off, check in, etc.
Any feedback is welcome!