Hmmmm. No. I haven't used the Canyon BikeShuttle. BUT, I have used other hard side bike carriers, and I'll bet I can tell you the pertinent points to look for.
First - will your frame fit the case? Are you extremely tall, and do you have a tall frame? Then beware! It might be advisable to give the case a trial run, and see if your frame and wheels fit inside.
Second? Well, past #1, I can't think of much. You might check how well it fastens together. That could break. Certainly a concern would be how will this package get treated when you show it to the airline counter? If you were travelling by train or auto, you wouldn't be using this. So it must be by air.