I like the idea of modelling real world problems (especially becasue that is the way I look at OOP) The JukeBox is acool idea, but with it being 2 in the morning, I really want my own Jukebox.

Large group projects like this force good design because lots of people will be looking at the modelling end of the project. It is a really positive way to learn OOP and other group skills. I think this article did get a little lost in the trees of its project and missed discussing some of the bigger pictures involved. But some really good ideas are here.