Overall, very well designed and built and thusly, gets a 5/5. ) They are very light weight, ultra quiet when you walk, great support especially for my mid to high arched foot. I believe the fit went up to 9. The rack has remained in place for over a month without mishap at this time. I wear them ALL THE TIME at home. I think after wearing them, it may have fixed itself, but it was strange to feel one tight shoe and one perfect fit. Open and close the tiny charging case and va-la, its connected 10-10 for connecting. The Whitmor Linen Over the Door Shoe Organizer is a very nice product. I have a small opening, so they tend to not fit right, fall out, or create a suction inside my ear. The medium and large ones are *comically* large.