The app was super easy to set up and now I can call my keys when I lose them. Good surprise. I was super excited to get this for our AirBNB unit. Fits as should and gives some support to my 44DD breasts. For the first 3 weeks everything was fine. So maybe these would be good for those with wider feet. I dealt with the bad Logitech software not recognizing my mouse for about an hour and the mouse is so good Im still not taking a star away! I was hoping for more of a sleek shape, like the shape of a ballet flat and these are very square. Family and even strangers ask me how I have such great-looking skin. No point in sending them back so I?ll just sell them on my own.