I'll be heading out to Steamboat Springs this summer with my new SC Blur, and I'm taking my bike as checked baggage. I've used cardboard boxes before, with so-so results. However, for this trip, I have to change planes 3 times per way, and I don't trust plain old cardboard to protect my bike. However, I can't afford a $200 cargo box or similar.
I can't comment on that box, but I have the Performance box ($200) and it's worked fine. Yes, the airline is lame and charges an extra $50 each way, but I think it is worth it. The TSA has to hand check (makes me nervous as hell cause I pack it so specifically) but I stand there and tell the guy how to put it back, then hand him locks, and he puts them on.