LEDs needs are very watery in their colours, and its difficult to get a nice colour mix if you want certain shades. 2) The adjustment holes are sort of useless. Sound quality is much better than the Zolo Liberty+ I’ve been using for the past few years and the ANC seems to be pretty decent as well. These shoes, by far, are the most comfortable yet! I read lots of reviews , some say runs small, some said dont listen, its true to size. Again, I was shocked. The mens version has better colors. They are also much quieter than other slippers due to the soft sole. So far great 5 stars If they last long enough Ill keep buying same model as long as skectchers sells them. I was underwhelmed by the earpieces at first because Im used to earbuds that fit more firmly into the ear canal however with the correct size it actually fills the opening of my ear in a way that made it very light and comfortable and also gave incredible sound quality while feeling secure.