Permanent window BAD. Not dustproof.
936866
Nice, tough case.

However, it does not keep out dust, liquids, etc... and it also has that darned permanent window in it that, once scratched, leaves the entire case pretty much useless.
3314415
It has a really good adhesive stickiness the first time you peel off the backing and it stuck to my window like nothing I'd ever seen. I had to peel it off one time and I was never able to get it back on the window again. The stickiness was reduced and there was no suction when I closed the lever. Very disappointing. I would only buy this if you plan on putting it up and never taking it off.

Update: The company was very good about replacing the item when they heard that I was not completely satisfied. Because of this I have changed my review from 2 stars to 4 stars. I have not opened the new item yet and will wait until I have a specific need for it. As I said, it is very effective when you first place it on the windshield. The problems had arisen when I took it down and did not put it back up right away. Perhaps dust had attached itself to the sticky surface and made it unusable. Perhaps a solution would have been to place a plastic piece of film to keep of the dust would have preserved the surface.
44002
Seriously disappointed. I work landscaping, a job that's managed to scratch my gorilla glass screen. I wanted a case that would protect my phone against that. This case isn't dust proof at all. I can keep it in my pocket and dust will get under the screen protector, inside the case she even next to the phone. This case didn't live up as advertised.
3116731
This case is not dust proof, or water resistant.
The structure of the case is excellent, good metal and glass protection, however it doesn't seal up, I'm an outdoorsy guy, live and work in the outdoors, I also do a good bit of wood work and my phone is constantly full of dust, I could clean it everyday and dust will still be inside the case. Its a good idea but it's definatly not perfected! I have to wrap my case in a ziplock bag to keep out moisture and dust...do not recommend if you plan on using your phone outside.
4376695
I attempted to clean dust off this shield with a literally new microfiber cloth and the coating scratched so bad it was unusable. Here's the fix. That film/coating will come off. Some rubbing alcohol and elbow grease is all it takes and I can now see through the shield again.
299228
There is a reason you get three screen protectors for $3 here. Because they are made with the lowest quality I have ever seen from a screen protector. I used all three of my screen protectors while trying to put them on. In every single case, a single, micro piece of dust got under the protector or maybe even a extremely tiny piece of hair. Those intern caused large bubbles to form around them. Yes, I did use a microfiber clothed to clean my screen, in fact, I used multiple different cloths and it still found a way to get one single piece of dust under the screen. This isn't the first screen protector I have installed either. I'v installed many different kinds of protectors to screens and none of them had this problem. I WILL NEVER BUY FROM THIS COMPANY AGAIN.
371867
Only has adhesive on the edges which allows dust to get under the screen protector. I took it off to clean underneath and it cracked. It's a piece of junk.
2066709
Any tiny spec of dust will leave a large visible artifact. Because the protector is laid on dry, you can't squeegee the dust out. Any attempts to fix things once the protector has been laid down only makes things worse.
357693
This fan has a pretty basic flaw in its design. Rather than placing the bulk of the fan inside the room, it's designed to keep the front more or less flush with the window and place the bulk on the other side. This means there's no way to place it in a window with a screen in it, and of course the openings in the fan are more than large enough to suck bugs in along with any fresh air. This was a complete waste of money for me.
1664985
I really wanted to like this protector, it has a perfect cut and I liked all the reviews about its clarity. I have applied plenty of protectors over the past few years but this one seems impossible to apply without getting dust or lint trapped in-between the protector and the screen. I started the application in a fairly dust-free environment (bathroom, hot shower on) and cleaned the ipad screen completely and thoroughly. I removed the first protective film and when I applied the protector to my iPad, I immediately noticed dust particles. Slightly frustrated, I started again with the second one and this time paid even closer attention. When I removed the film, I could feel the static electricity charging the hair on my hand and see how the film virtually "absorbed" all dust particles that it came close to. Because the surface of the protector is sticky, it is impossible to remove the dust once it sticks...
3409907
Attracts dust and although I had my new computer dust free, I could not put it nicely and without air bubbles trapped between screen and this foil and the reason were dust particles it attracted from  surrounding, precisely my work desk (work papers) where I was trying to do this, and it happened as soon as I lifted the beginning of protective layer from it (it comes packed in between 2 protective, clear foils). And no, my desk was not dirty or dusty at least it did not appear to be until I started putting this on my screen. I've cleaned it only one day earlier. It does reduce glare, if you can ignore bubbles. Not the best product one can hope for.
4596983
This thing broke one of my windows, luckily it was new enough that I could return it for a full refund, but the cost of the window replacement was painful.  Before the break incident, it was able to clean about 15 other windows just fine, although the unit is noisy and leaves streaks, and has to be constantly monitored, and keeps falling.  But when it broke a Pella window in the middle of a cleaning (not by falling), that was it.  It's obviously not perfected yet, and I really don't want to have to replace any more broken windows.  And it's big and heavy, which seems dangerous to pets below and windows too.
4290484
I give this 1 star as a warning to others intending to use it for convertible top plastic windows, try it on a very small area of your window and wait a week.  I used this on a pristine, garage kept, 27k mi 1997 Miata plastic window, which until using this product, was crack free, flexible and in perfect shape.  The good news is, it did clean the window.  The bad news is, 1 week later, the window is a cracked, crumbling mess and I have to replace the entire top.  I am not a chemical engineer or professional detailer, but this seems to have taken all the elasticity out of the window and turned it into a brittle, hard, piece of plastic.  The difference to the touch is very noticeable.
3836849
Case is not dust proof and scratches way too easily, very upsetting that I spent 50+$ of this case. Not happy, LifeProof should give me another case free of charge.
3607823
adhesive not very good , cleaned window before I put it on and about a week later it started peeling off
1350808
This was not easy to put on.  Step 1, throw away the yellow rag they pack, it is lint-filled, and totally worthless.  Lint and dust are your enemy in this process.  You need a true lint free cloth, and get the tablet screen as clean as you can.  Find a dust-minimal room, like a bathroom after a hot shower, then turn on the exhaust fan to evacuate more floating dust.  Get familiar with the 2 protective sheets, and the order they come off, and the orientation of the sheet.  Start from a corner, and use a credit card to keep the bubbles to a minimum.  Don't worry too much about any small bubbles, I think I had some and somehow they disappeared.  Good luck.

1-star deducted for the difficulty of application
1-star deducted because they should ship 2 protectors for this price (you'll probably mess the 1st one up).
2524770
I put this on my windows to block the summer sun. I decided to remove it for the fall & winter months. It left an adhesive film on the windows. I have tried many adhesive removers. None will work. I'm left with using a razor blade to try to scrap it off. It is very difficult work because it is so sticky. I will never use this product again. I feel like my windows are ruined. I am just glad that I only used it on 4 windows.