I have heard good things about them...
I have a Sunlite Hard Bike Suitcase...
http://sunlitecycling.com/site/flash/index.swf
Easy to pack, easy to roll, but it is huge...
Everyone who sees it says its the biggest suitcase they have seen...
The TSA had a fit and made me open it. They took swabs from all over because we all know carbon fiber is a dangerous explosive...