Summary: These things hurt my ear canal too easily unless I use the orange foam inserts, but they get gross and deform a little too easily.
Anyway, the sound on these was good enough for me to realize that my iPod had a pretty constant hiss.
Summary: I got these phones used with a broken plug which I had to fix myself, so I have no idea what kind of life they had before they came to me. That said...
You can do better than these phones. The sound is good, there isn't any particular strength or weakness upon which I will extol.
Pros: Well-built, relatively cheap, comfortable, good isolation