Firstly, the sound quality on these is enjoyable. Clarity of every instrument is good, and there's a good balance between, highs, mids and lows. There is also an app for tinkering with the mix so that's a plus. The fact these phones have reasonably ANC is also good. The ANC works pretty well. There are however a few negatives. One being the ear cups are tiny, don't expect these to fit over your ear unless you're a child. I can't use these for extended periods of more than about half an hour without them starting to become uncomfortable, pressing on the ear. Perhaps including cups in different sizes would have been a better bet. When connected to more than one device, if you walk out of BT range of one, while listening to another, you get a break in message from the phones stating, "Connection lost". Highly annoying. The controls are slightly annoying, they are all on the right ear cup, but the track changer is a slider which is fairly sensitive and every now and then when I reach up to press another button I accidentally knock it and the track skips. Overall decent for the price but with a few design improvements could be amazing.