So far shes worn them for 2 days, and there are no scuffs, which is good because shes pretty hard on shoes. They don?t block out all noise, I?m still able to hear my machines but not people talk so it will work for most people but the battery is my main complaint for these if the battery lasted at least 8 hours I would give them a 4 but for my experience it?s a 1/5 Expensive?? I don?t think you can put a price on comfortable footwear - value for money in my view. I?m 5?5 and 110lb , this is a long sleeve mauve size small . Sony got these right, the rubberized design really stays on your ear like glue even when sweating. Good for summer ok for other seasons. The shelves were crooked and Indid not receive any screws or any type of hardware to mount. Like ease of assembly and sturdiness. This suit is vey comfortable! I found them comfortable for long periods of listening once I got the right bud size, and they dont fall out, they seem to get sucked nicely into position.