Bought this recently for my band, we had fears of condensation ruining our x32. As soon as I saw there's a cover for it, we bought it.
If you're using a tablet for your mixing like we do, this is a must-buy for you. What's best, it even fits inside of the case together with the mixer.
You don't even have to remove it.
Now, it is a plastic cover, and can maybe look a little cheap, but it is a little bit flexible and won't break immediately if you bend it a little.
You gotta watch out if you're using a USB with your mixer. We have a low profile Sandisk 512 GB USB and it can stay on the mixer while the cover is on. But if you're using a regular one, it's going to lift your cover a bit. Not a huge problem, but can be irritating.