Watching this the first time I was totally sucked in for the first 5 minutes. I was wondering "What happened to the Justice League?" I can't believe it has come to this. But when they talked about the Flash being gone I knew this had to be some alternate reality.
Most of this episode just helps us to get to know the Justice Lords. I completely buy the reasoning offered by GL about why they did it. You almost empathize with their moral dilemma.
I also like the way it adds another aspect to the GL, Hawkgirl romance interest. Hawkgirl - "Do you sleep better now?" GL - "You know I do."