Greenwood is just good fun, I suppose. It's a little reliant on having read the manga, but not entirely (though it really does stop and tell the viewer to reference the manga at least once!) - it's a comedy about an off-kilter boys' dormitory and the adventures of four residents. I'm not really sure what makes it different than anything else... To me, it's just a very amusing slice-of-life with enough wackiness to make it seem real. (In the same way I have fond stories about college roommates who listened to polka music or praised Jesus at 3am...)

I think the series is only 6 episodes, though they're OVAs and longer than the normal 25 minutes each.