Champagne curbside entry to LAX. Private security screening. Direct entry into the Delta One Club without otherwise entering the terminal.
We actually were a tiny bit lost and rambled around without luggage looking for the Delta One entry, so here is the hint: you will drive up to it. Look for the signs and the frosted glass doors outside of terminal 3 arrivals. It might be a few feet past the luggage carousels. The agents will collect your bags and passports there, hand you a glass of champagne (other snacks and beverages available), check you in while you relax in one of the lounge chairs and hand deliver the passports and tickets. Literally, Ben was on a call relaxing in a lounge chair while we were checked in. No struggling with your bags through the terminal seeking the check-in desk, not standing at the check-in desk. Pure relaxation from the moment of stepping out of the car. Not that I mind hauling my bags through the airport or standing at the desk, but it was a lovely way to start a trip and would be really wonderful in certain circumstances. Delta One has private security screening. We were the only passengers at that time and were through in seconds and only a few seconds later strolling into the Delta One Lounge. The Delta One lounge is very civilized. There was plenty of space, charging ports, two (identical) food buffets, showers, an outdoor area, and Rice Krispies treats. We took a shower there. Basically a five-minute wait and the agent texted us that the shower was ready.
There will be a walk and a bus from the Delta One Terminal to Tom Brady International Terminal, so build an extra 10 minutes in to get from the Lounge to the Boarding Gate, however, even this was fast and efficient.