I'd argue the opposite! I bought an ATE and it sounded like garbage. Then I bought a ZSE and it sounded kinda terrible. Then I bought the ZS5 and it was OK, but the sharp highs made me tired. And then I'm pissed off because I could have bought something so much better for $50 or less. But out of frustration, I went overboard and spent $100 on some KEF earphones and I couldn't be happier! You get what you pay for with KZ. You could simply get 1 good earphone, but you buy 5 garbage ones from KZ instead.