I completely disagree with these opinions.
I bought this case due to an overwhelming fear of any damages or dust to a phone clearly more fragile than a normal one.
I'm right handed, and the hinge cover that protrudes out the back when the fold is opened becomes a great handle to dig my fingers into when holding it with my left hand so my right hand can do all the typing. It can also now be laid on a flat surface and asked upwards to watch a video hands-free.
The bumper protection is solid, the camera bump is well safe and it hasn't blown the size out so that the fold now feels clunky due to too much case.
The price is 30 dollars more than the spigen case, and for a lot of people I understand is prohibitive. But considering what we had to drop on the phone in the first place I wanted maximum protection. And I get it with this case.
However with both this and the spigen case I'm still taking it out once a day and checking for any dust that might get caught inside it and may work it's way into the hinge.
With or without a case there's the chance of foreign objects getting in, and that's no fault of the case design. We accepted this risk by buying a phone of this design and is up to us to be wary of all the issues.
Either way my vote is yes for this case. After a week it's quite solid, allows me to hold the fold a lot safer and I am confident in its protection.