This past weekend, I built a gaming rig for my friend's daughter with this case (white with pink trim version). For airflow, there's no front or top for fans. But you can mount two on the side, up to three on the bottom, and one on the back.
It's a decent size, but wouldn't call it roomy, more like a compact mid-size case. FYI, the I/O panel doesn't go flush with back of case, you'll see what I mean if you go with the 101.
Finally, the tinted side viewing window is very dark and held in place by two push/pull type locking mechanisms, it doesn't come off like thumbscrews.