Brothers, and its down the street cousin, Brothers II, are well worth the wait. Excellent Korean BBQ at relatively reasonable prices (i.e. not dirt cheap), in a convenient SF location. It's no worder the lines are out the door on weekend evenings.
Best thing to do is drop someone off to get in line, while the driver goes to look for parking (which can take a while).
The service here is as good as you can expect at a crowded Asian restaurant. In other words, you're table will be clean, you'll have napkins and utensils, but don't expect much else from this severely overworked staff.
But the food here is well worth the hassle.