Got these today and I'm absolutely in love. The sound quality is pretty good, not the best but very good, with plenty of bass response if that's what you're into.
I can't explain how these things fit so well in the ear. It's insane. They hook in to your ear for a super secure fit. It's impressive. Pictures CAN NOT do these things justice.
For the price, these are the best. I plan on putting these things through a lot and I don't doubt they'll be able to handle it no problem.