Always knew these were not going to be "the best" but they are good value for money and so I still recommend them.To get the best from them, you do need to get them well seated into your ears and, at least at first, I found this very difficult. They do seem to have adjusted somewhat over time though (or maybe my ears did!). I also discovered that one ear is not quite the same size as the other.The mobile app really is needed to get full use from them but, like many, I found many of the settings simply didn't make things sound "better", just different. But when they are seated properly, the sound is more than good enough for my listening (mostly audio books, jazz, classical).Noise cancelling is OK but the biggest effect is, again, when they are deep-seated in the ears. So I'd say that noise isolation has a bigger impact than the cancelling. Still, it is a noticeable difference. The ambient noise setting is also useful for being able to listen to people without taking them out.So certainly not perfect and the battery won't last all day, especially with noise cancelling on. But they do charge very quickly.Still get 5* from me, especially at the discounted price I got them at. They haven't disappointed me even though they did take a while to get used to.