I have used the Parking Spot -Century once or twice a month for 2 years. Friendly, courteous people, prompt shuttle service to/from LAX at all hours, AAA and frequent-parker discounts, reservations available on the easy to use website, and the valet service has never damaged my car (which is more than I can say for WallyPark). Well worth the slightly higher cost.
Close to the airport.
The Parking Spot here on Century is probably pretty standard (hard for me to know, I only live in one city). But I'll say this particular location is clean, the vans frequent, and the car wash service great. I use this Parking Spot on Century every time I go to the airport. Use the valet for quick in and outs. Call once you land to make sure they come around but usually you can just wait and be ok.