I'm sure it's a matter of either doing it well or poorly, but in my experience, "styled" UI's are one of the reasons why software is so bad for most software an

I'm sure it's a matter of either doing it well or poorly, but in my experience, "styled" UI's are one of the reasons why software is so bad for most software and most users. At least the default UI style provided by the OS is something people can learn and transfer from one app to another. And since I'm not a gifted UI designer, it's probably better than anything I can come up with. It also adds to the already crippling cost of software development. The words you dread to hear from marketing: "Our software looks old."