I've seen one up close and personal - when Judah was staying at mine. I was astonished to see that a 54.5 frame and everything else fit into such a small bag. It's amazingly compact and when you see it, you swear there's no way you can fit a whole bike in there. Granted, some things stick out a bit, but padded well with insulating/foam tubing and some rags/shirts/clothes even, and it's pretty cool.

The quality seems pretty good - on par with most bags of that ilk. Heavy duty stitching, cordura all round. It's a pretty simple bag in some respects and it looks so from the outside. Minimal. The top straps/handles are long enough to fit on your shoulder so you can carry the bag like that as opposed to carrying it briefcase like.