I have to admit, Slater's makes a mighty tasty burger.
Scott Slater was a San Diego State grad, but that Liberty Station location was not the first Slater's 50/50 - it was probably the second. (The first was in Anaheim.) I have a photo from there from 2011, and I haven't been back since - but only because it's not nearby. However, I did think they took a good idea too far when they put bacon in a milkshake.
Prior to 2011, Liberty Station was a nothing burger. Then the Corvette diner moved there from Hillcrest, and others followed, but still kind of a weird vibe in that general area.
From the airport, drive west, and make a right at the land ship.
"Hamburgers, the cornerstone of any nutritious breakfast." -Jules, Bad Motherfuker