It's site says it's "A Friendly Store For Friendly People," and this is completely true. They throw fun parties in the back, and have a sick collection of clothes, housewares, and other goodies.
Leo's is an institution. I thought there was only one truck on Venice and La Brea but turns out they have eight across LA. Watching them slice pork and pineapple in one fell swoop is both drool-inducing and an art form. Open til 3am most nights I think.