Tristan - El Segundo, CA
I parked valet for 4 days and it cost me as much as a round-trip, 1.5-mile cab ride (I live just south of the airport) so it was an awesome deal and I didn't have to leave my car in my carport. Everyone was pleasant and no dings on the car.
My only issue was (and granted this was during the Thanksgiving weekend) that the shuttle was really full and there didn't seem to be another shuttle right behind the one that came by. So it was either get on or wait for another full shuttle. I was at T4 so chances that the shuttles would fill up between T1, T2, T3 and International Terminal was great.
But the driver still let us all cram in and we had to just stand and hold on for dear life. Not the safest way to go but given the circumstances, we all took chances.
Overall a great place to park and would certainly do it again. Some cabbies hate going to El Segundo because it's so close, some charge a "flat rate", which I think is B.S. So, it is much more convenient to park at the Marriott LAX
especially using cheapairportparking.org.