I don't understand the hype, or the outrageous price. It's just a clear piece of plastic, and it's the wrong size for every imaginable use.
It's not tall enough to be able to put it on while the patch cables are plugged in without squishing them down in a damaging way (so I'm supposed to unplug all my cables every time I want to use it as a dust-cover??), but it's also ridiculously tall if the cables aren't plugged in, which is a waste of space in my road case.
If they had just made it 1-2 cm taller, so it could cover a fully patched-up bay, then I'd give it two more stars.
So, again, why the hype?
I'm returning it, but I will mention that I like the one for my Korg Minilogue XD Module. It does the job.