I'm just not sure how sturdy these are. I know from when I had to use tension rods to hold up my shower curtain, that they would fall down a lot. I used heavy duty wall anchors to hold up my glory hole and I have had a few guys pull them out of the walls. I know that the tension rods wouldn't hold up to them.
Also, it says some of the sheets are machine washable, but the other ones need to be spot cleaned. I would think they would start to look nasty after a while. I use bedsheets with the hole cut out and it is so easy to throw them into the washer/dryer to keep them clean.
The kits they sell wouldn't work for me, I don't have a doorway to block off. I bought the room darkening/black out curtains to make the walls of my glory hole. They are thick heavy material that you cannot see through. I use safety pins to attach them together. The piece that has the glory hole is 2 bed sheets that I safety pinned together and cut out the hole. The hole has been ripped open a bit more over the years. But I like how it works that way. I keep the room very dark when the guys come over. I can get my head through the hole and they can fuck my face that way. I have a couple of guys that like to fuck my ass through the hole. I am able to get my ass through the hole and they will grab my ass to fuck it. The glory hole is maybe 8" across and 24" high. But because it is a soft fabric can be pulled or stretched in different directions, it allows my head or ass to fit through the hole. I have also had guys reach through the hold and play with my nipples why I sucked them. If you used heavier fabric, you wouldn't get as much play in the fabric that would allow that to happen.
And when the bed sheets get stained up or ripped too much, I can cheaply replace it with a new sheet. I have been using my glory hole for about 8 years now. I have changed the layout 4 or 5 times over the years. With all of the new sheets and parts I have bought for my setup, it is a fraction of what they charge for their setups.
I just think there are better options out there, it just takes a little intuition and imagination.