Under tension it will not stay flush against the corner ...
927809
Under tension it will not stay flush against the corner and bows outward.  Had to secure to wall in the center as well which provided its own difficult solution.
1030807
it looks great but the edges have started to curl up and will not lay back down.
4180379
When I laid it the first time the entire bottom right corner would not adhere. I lifted it (gently and without touching the bottom), shifted it up slightly, and re-laid it. The corner still would not stick. I attempted this a third time, moving it to the left (hoping that it just needed more space. No luck - the corner still did not stick. I returned it and will be trying another brand. Hope others have more luck.
Further, it had a rainbow effect where it did stick.
2890937
Not very sticky -- items corners started curling even after going to great extreme to make sure I pressed every square inch into each rib-- ( to be fair the HP  lap top back is ribbed -- and I'm not sure how this would have worked on a smooth surface)
1524897
Simple to assemble and construction is sturdy, but I'm unable to get my 3 x 24" Dell monitors flush with each other. If I adjust the outside monitors so they aren't angled, then it's barely flush. I'm very disappointed in this product and will be returning it and getting something else.
1422757
Worked on the corners but the edges are still rolling up.
2476248
The ball and stick joint does not stay in place.
4007368
This will not stay on the screen roll yo on the edge
1470504
The corners of the sheets do not stay in place. The elastic is not firm or strong enough elasticity to stay firmly on the bed.
1305254
I am learning to play and the buddy will not stay in place even after tightening it down. I will probably end up taking lessons. I saw this on Shark Tank and thought it would help, but not so sure now.
790436
I found this product worked fine, and works better than my last one, however I still have the same problem with this that I did with the other.  It has a tendancy to move, and every time I use it I have to re-align it.  I've only had for a couple of weeks so I haven't had time to fiddle with it to see if I can fix this.  If anybody else has a suggestion, I'm open.
4114572
Very hard to get one in places with all corners stuck.  The upper right corner seems to not want to stick.
3774364
It fits OK around the corners, just doesn't fit tight on the sides. Would prefer a tighter fit around the sides.
3283585
there needs to be a little more elastic in the corner sections there is a slight problem with keeping the corners around the edge of the mattress.
1575495
The case has a rotating feature so you can view portrait or landscape.  However, the grooves in the bottom are not deep enough - I try to prop up the screen and set it on my lap or the table, and it has a tendency to slip out of the grooves - very frustrating!  The color is beautiful.  If it would stay propped up, it would be a 5-star review.
4301755
I bought this after purchasing the same brand for my LG G3, and one for my girlfriends Samsung S6. I am super critical about screen protectors, and this brand has been great. Unfortunately, I may have gotten one with an issue. One corner of the protector won't stay down. I've tried taping it down and laying my iPad face down for two days, still won't stick. It's a bummer, but I would still buy iCarez protectors for any device I get.
3339724
This would not stay in place as seen in the pic. If it had something to lean up against it would have been ok.