Excellent, as usual.
I have another one by Gator, which is rectangular case, but with simialr foam. It looks as robust as the rectangular one, only shaped, and lighter.
Many flights and no damage, so far, neither to the cases, nor to the instruments.
Pros:
Good handling,
Balanced Weight.
Good Protection.
Might even be used a Flight Bag for the mighty travellers (with some luck of course).
Has Rain Protection Cover
Lots of pockets.
Great looking
Goodinvestment
Cons:
The rain Protections could be the very fabric of the case, not a separate nylon jacket. I thought the case were waterproof, but it is not. The extra nylon-like cover seems to handle rain, snow, etc well enough, though.
Conclusion, it is not a crash helmet composite, it is foam. It may bend, has a limit of weight it can hold on top, but I trust this case on flights. Thomann has a good deal here. I recommend it.