I've been testing this travel case for the Wooting 80HE over the last month, and I cannot complain at all. The case itself isn't heavy and it even fits into a standard backpack. It is spacious enough to hold everything, which is incredibly convenient if you want to keep all your gear in one place.
The main goal of the case is definitely achieved: it is very solid on the outside, and the inside is soft enough to absorb any shock. The best part, though, is the inner fur lining that I literally use to lower my cortisol levels because of how soft it is!
I absolutely recommend this case for anyone who travels frequently, especially if you need to carry not just your keyboard, but also a mouse and cables.
One last point: I wouldn't recommend this case if you only plan to transport the keyboard. It is quite wide, as it is specifically designed to fit other peripherals alongside it.