I got this product as part of a promotion, and wanted to give it a real try, to test it's durability.  
I bought my wife a Valentine's Day wreath, and thought this hook would be the perfect hook to use, to decorate the outside door, with the wreath.  The Outdoor Large Window Hook held up great!  It was only up a week, so wanted to give it another try, in a different application.  Taking the hook off the window was honestly a breeze.  
I went to the hardware, purchased two new strips, and decided to hang the hook in the garage.  It holds my keys in the garage, and it has held up nicely.  
The only reason I gave it a "Good" rating is, I struggled to find applications for this hook in the outside.  Now, using it in the garage was no problem.  
Overall, a very good product!