I bought these 3 years ago from Amazon and I've been using them pretty much daily since then. Still going strong, even though the cushions start to show wear.
I am not an audiophile, but I do own a pair of very nice studio monitors and I think good sound is very important. There are some very, very slight artifacts when using wireless (due to BT compression) and they are a tad bass-heavy when using with the audio cord. Overall, the sound is absolutely acceptable for a mobile headphone. And boy are these mobile. Once you get used to having no cord, there is no way to go back.
And yes, music and volume control work flawlessly with Android. Even answering and making calls is no problem at all (although I don't do that, don't want to look like a dork).