I have owned MANY versions of the Bose in-ear headphones. At least four different pairs. This is because of two main things: 1) I love how comfortable they are, how they sound, how they look. 2) The cord frays and the headphones break after about two years or so, sometimes more, sometimes less. The trade-off is significant. They've changed the cord style multiple times, but no design they use has affected durability. At some point, the cord frays and these headphones WILL FAIL. I use them basically every day, on my commute, at work, at home. Your mileage may vary based on your use. That being said... I love them. No in-ear headphone has the same balance of sound quality (especially decent bass), comfort (they're in-ear, but do not plug your ears, which I hate about other in-ear headphones), and style. They stay in place due to stellar rubber tip design, and because they don't plug your ears, you can still stay aware of your surroundings enough to feel safe (important for me since I live in the city). If they could make these wireless with the same wireless connectivity efficiency as Apple's AirPods, these headphones would be absolutely perfect.