I've been pimping super duper to everyone, this place has some damn nice burgers. Some of the best tasting meat I've had on a burger, but they are also VERY greasy. Yeah, I know, it's a burger. Grease is expected. But it's a bit much. I've eaten there about 4 times and they seem to get greasier with each trip
Garlic fries are very good but unless you're a competitive eater I'd suggest splitting them with a friend. It's hard for me to eat a burger, shake *and* the fries (I manage but I kinda regret it after). Unless you are feeling extra spendy I recommend skipping their trio of special sauces (which they charge extra for) -- the ketchup is just fine with me. There's no wrong choice with the shakes. I've tried 2 or 3 different ones
Don't pass on the free pickles (and garlic) at the condiment station. They are incredible. There's usually two big jugs full of them and I've never seen a restaurant give out free pickles like these. You'll fall in love.
You can get a double burger with cheese (cheese and/or bacon is extra, other toppings, such as grilled onions, are free), shake and garlic fries for just under $17. The quality is up there though, you won't regret it.
When I go, I usually hit up the newish one on Mission right next to the new Target at 4th & Mission. The one on Market seems to get more crowded, but they are both busy.