Just got them, so not sure what rating to give, but so far they're great. I usually get a 7.5 but got these in 8 and they fit fine with crew socks. One zipper is functional, the outside zipper is just part of the design. The laces allow you to adjust the boots, then the inside zipper allows for easy off/on. I have problem feet and have been trying various shoes with a similar style, including Taos and Teva and so far these are the best bet, most comfortable from the get go, most supportive . . . And best price.