The value on these is just incredible. I'll be the first to admit that my headphone knowledge is not the greatest, but it's 7 months in and I'm still surprised by these phones, which are still working perfectly. The design is simple and relatively comfortable, even for glasses wearers. (I currently wear pretty thick plastic frames too.) The isolation is not bad but outside sounds are still clearly noticeable. This is also a reason for these being not the best choice for activities because eventually the sweat and buildup will make you want to slip...