Being a fan of Jay's Q, I opted to try the burger this time (TIME being the key word). I went for the JnJ Cheeseburger, which is merely a double cheeseburger with LTO, mustard, mayo, pickles. I ordered it stock. $4.50
The bun was grilled. The patties were big & juicy, cooked medium (again, stock; I didn't specify this). The cheese/mustard/mayo seemed to coalesce into a super sauce of sorts (or a nasty puke menagerie, depending on your tastes, but I liked it). The "veggies," were minced and were minimal, meaning just sprinkled on.
The meat tasted fresh and very beefy, at least as much as In-N-Out's, but it probably wasn't Angus. It wasn't really seasoned either, like you'd get at Fat Burger, but was still flavorful.
On the whole: I'd rate it above average for an LA burger, which says a lot (though I'm not a huge fan of Cassell's, but definitely respect it, which may also say a lot).
The absolute BEST feature of this burger was its meticulous preparation. It was constructed with clean livin' in mind (the opposite of a Tommy's). Radius of the meat was exactly 2 cm less than that of the bun, forming a concentric and stratified package. The sauce and everything else were so well contained that I neri needed a serviette. It was more like a Chinese baozi than a burger in its final form. They should try using one of those sandwich presses to seal the sides, 'cause that seems to be their goal.
Anyway, the absolute WORST part of this experience was the wait. If I was actually a person who cared about time, I would've gone rampage postal. All I can say is don't go on your lunch hour, unless you're the boss or the girl fuc$ing the boss (like me, jk).