I've used them a handful of times at LAX, in fact I fly into LAX instead of BUR to make use of Silvercar. The price is usually around the same as a "mid-size" at the other guys but you know ahead of time the exact type of car and the space it has. You know it's got a decent amount of power so I've never been worried of being underpowered in fast freeway traffic. It includes built in sat nav so I don't have to look down at my phone. It even includes 4G wifi in the car which I never thought I would use but came in handy with my passenger when she wanted us to listen to some podcasts that weren't on her phone and she had limited data.

Prices are usually $59/day to MAYBE as high as $79, but I usually always got ~$60 which includes most taxes and stuff so it's really like $50/day for the car. Take 30% off and that's fantastic!