Did the ERAU thing. Took as many as 4 classes at once while working at a freight company then regional airline. To tell you the truth it didn't require much more than a few hours a week, except during midterms and finals. Hardest part is staying motivated to do what little work is actually required. Obviously all tests are going to be open book multiple choice (maybe a few essay Qs) since it's all online. Overall a great edumacation.
You do get out what you put in though, I'd just rather go to the library and read something truly interesting vs. something you're required to study. Well, I can check 'the box' anyways, and it's probably your only option if you're going to work a simultaneous airline schedule.