amytx5,
We've never used Park N Fly at PHL, but, I know several on these boards have. I have heard to stay away from the Ramada near the airport. Google Park N Fly and there is a website which will give you several available options. We usually schedule a late morning/noonish flight to avoid staying over the night before and we don't even take our own car anymore. We simply rent one at our local airport the evening before and arrange to drop it at PHL and do the same at PHL for our return. It's actually about the same cost as paying for parking at PHL and we don't need to worry about our vehicle parked at PHL all week.........